Add emoji confetti bursts and component playground.

Support app.relay.emoji_confetti on jumbo emoji clicks with canvas physics,
per-emoji particle profiles, and a fixed overlay that does not affect scroll.
Also add a Vite playground for live component previews and theme hover preview.

.gitignore

@@ -5,3 +5,4 @@ devAssets
 
 .DS_Store
 .idea
+.cache

docs/handoff/features/background-notifications/HANDOFF.md

@@ -76,6 +76,7 @@ tauri.ts / electron main
 - Multiple runtimes: `isTauri`, `isElectron`, `isCapacitorNative` branch logic
 - Pusher registration races on fast login/logout
 - Android small icon: `ic_stat_paarrot` must exist in Android resources
+- Background wake (`MatrixSyncService`) must filter by push rules / unread_notifications; a push for one room used to notify for every new message in the sync batch
 
 ## Future work
 
@@ -91,3 +92,4 @@ tauri.ts / electron main
 
 - Constants: `PUSHER_APP_ID_BASE`, `PUSHER_STORAGE_PREFIX` in `backgroundSync.ts`
 - Logo assets: `paarrot.svg`, `paarrot-unread.svg`, `paarrot-highlight.svg` in `public/res/svg/`
+- Android notify filter: mute / mentions / default-room behavior lives in `MatrixSyncService.resolveRoomNotifyMode`

package-lock.json

@@ -83,6 +83,7 @@
       },
       "devDependencies": {
         "@esbuild-plugins/node-globals-polyfill": "0.2.3",
+        "@monaco-editor/react": "4.7.0",
         "@rollup/plugin-inject": "5.0.5",
         "@rollup/plugin-wasm": "6.2.2",
         "@types/chroma-js": "3.1.2",
@@ -106,6 +107,7 @@
         "eslint-plugin-jsx-a11y": "6.10.2",
         "eslint-plugin-react": "7.37.5",
         "eslint-plugin-react-hooks": "7.1.1",
+        "monaco-editor": "0.52.2",
         "prettier": "3.9.4",
         "typescript": "6.0.3",
         "vite": "8.1.3",
@@ -2563,6 +2565,31 @@
         "node": ">= 18"
       }
     },
+    "node_modules/@monaco-editor/loader": {
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/@monaco-editor/loader/-/loader-1.7.0.tgz",
+      "integrity": "sha512-gIwR1HrJrrx+vfyOhYmCZ0/JcWqG5kbfG7+d3f/C1LXk2EvzAbHSg3MQ5lO2sMlo9izoAZ04shohfKLVT6crVA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "state-local": "^1.0.6"
+      }
+    },
+    "node_modules/@monaco-editor/react": {
+      "version": "4.7.0",
+      "resolved": "https://registry.npmjs.org/@monaco-editor/react/-/react-4.7.0.tgz",
+      "integrity": "sha512-cyzXQCtO47ydzxpQtCGSQGOC8Gk3ZUeBXFAxD+CWXYFo5OqZyZUonFl0DwUlTyAfRHntBfw2p3w4s9R6oe1eCA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@monaco-editor/loader": "^1.5.0"
+      },
+      "peerDependencies": {
+        "monaco-editor": ">= 0.25.0 < 1",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/@napi-rs/canvas": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/@napi-rs/canvas/-/canvas-1.0.2.tgz",
@@ -8801,6 +8828,13 @@
       "resolved": "https://registry.npmjs.org/modern-ahocorasick/-/modern-ahocorasick-1.1.0.tgz",
       "integrity": "sha512-sEKPVl2rM+MNVkGQt3ChdmD8YsigmXdn5NifZn6jiwn9LRJpWm8F3guhaqrJT/JOat6pwpbXEk6kv+b9DMIjsQ=="
     },
+    "node_modules/monaco-editor": {
+      "version": "0.52.2",
+      "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.52.2.tgz",
+      "integrity": "sha512-GEQWEZmfkOGLdd3XK8ryrfWz3AIP8YymVXiPHEdewrUq7mh0qrKrfHLNCXcbB6sTnMLnOZ3ztSiKcciFUkIJwQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -10157,6 +10191,13 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/state-local": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/state-local/-/state-local-1.0.7.tgz",
+      "integrity": "sha512-HTEHMNieakEnoe33shBYcZ7NX83ACUjCu8c40iOGEZsngj9zRnkqS9j1pqQPXwobB0ZcVTk27REb7COQ0UR59w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/stop-iteration-iterator": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/stop-iteration-iterator/-/stop-iteration-iterator-1.1.0.tgz",

package.json

@@ -14,7 +14,8 @@
     "check:eslint": "eslint src/*",
     "check:prettier": "prettier --check .",
     "fix:prettier": "prettier --write .",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "playground": "vite"
   },
   "keywords": [],
   "author": "Ajay Bura",
@@ -94,6 +95,7 @@
   },
   "devDependencies": {
     "@esbuild-plugins/node-globals-polyfill": "0.2.3",
+    "@monaco-editor/react": "4.7.0",
     "@rollup/plugin-inject": "5.0.5",
     "@rollup/plugin-wasm": "6.2.2",
     "@types/chroma-js": "3.1.2",
@@ -117,6 +119,7 @@
     "eslint-plugin-jsx-a11y": "6.10.2",
     "eslint-plugin-react": "7.37.5",
     "eslint-plugin-react-hooks": "7.1.1",
+    "monaco-editor": "0.52.2",
     "prettier": "3.9.4",
     "typescript": "6.0.3",
     "vite": "8.1.3",

playground-liveTsxPlugin.ts

@@ -0,0 +1,149 @@
+import path from 'node:path';
+import fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import type { Plugin, ViteDevServer } from 'vite';
+
+export type LiveTsxApi = {
+  getSource: () => string;
+  setSource: (source: string) => void;
+};
+
+const ALLOWED_PREFIXES = ['src/app/components/', 'src/app/features/'];
+
+function resolveAppSourceFile(projectRoot: string, relPath: string): string | null {
+  const normalized = relPath.replace(/\\/g, '/').replace(/^\/+/, '');
+  if (normalized.includes('..') || path.isAbsolute(normalized)) return null;
+  if (!ALLOWED_PREFIXES.some((p) => normalized.startsWith(p))) return null;
+  if (!/\.(tsx|ts)$/.test(normalized)) return null;
+  const abs = path.resolve(projectRoot, normalized);
+  const root = path.resolve(projectRoot);
+  if (!abs.startsWith(root + path.sep) && abs !== root) return null;
+  return abs;
+}
+
+function readBody(req: NodeJS.ReadableStream): Promise<string> {
+  return new Promise((resolve, reject) => {
+    const chunks: Buffer[] = [];
+    req.on('data', (c) => chunks.push(c));
+    req.on('end', () => resolve(Buffer.concat(chunks).toString('utf8')));
+    req.on('error', reject);
+  });
+}
+
+function bumpLivePreview(server: ViteDevServer | undefined) {
+  if (!server) return;
+  server.ws.send({
+    type: 'custom',
+    event: 'playground:live-updated',
+    data: { revision: Date.now() },
+  });
+}
+
+export function liveTsxPlugin(projectRoot: string, initialSource: string): Plugin {
+  const liveFile = path.resolve(projectRoot, '.cache/playground-live.tsx');
+
+  fs.mkdirSync(path.dirname(liveFile), { recursive: true });
+  fs.writeFileSync(liveFile, initialSource, 'utf8');
+
+  let source = initialSource;
+  let server: ViteDevServer | undefined;
+
+  const api: LiveTsxApi = {
+    getSource: () => source,
+    setSource: (next) => {
+      source = next;
+      fs.writeFileSync(liveFile, next, 'utf8');
+      if (!server) return;
+      for (const m of server.moduleGraph.urlToModuleMap.values()) {
+        if (m.file === liveFile) server.moduleGraph.invalidateModule(m);
+      }
+      const byId = server.moduleGraph.getModuleById(liveFile);
+      if (byId) server.moduleGraph.invalidateModule(byId);
+      bumpLivePreview(server);
+    },
+  };
+
+  return {
+    name: 'playground-live-tsx',
+    configureServer(devServer) {
+      server = devServer;
+      (devServer as ViteDevServer & { playgroundLive?: LiveTsxApi }).playgroundLive = api;
+
+      devServer.middlewares.use('/__playground/live', (req, res, next) => {
+        if (req.method === 'GET') {
+          res.setHeader('Content-Type', 'text/plain; charset=utf-8');
+          res.end(source);
+          return;
+        }
+        if (req.method === 'POST') {
+          void readBody(req).then((body) => {
+            api.setSource(body);
+            res.statusCode = 204;
+            res.end();
+          });
+          return;
+        }
+        next();
+      });
+
+      // Read/write real Cinny component sources (strings, markup, etc.).
+      devServer.middlewares.use('/__playground/source', (req, res, next) => {
+        const url = new URL(req.url ?? '', 'http://playground.local');
+        const rel = url.searchParams.get('path') ?? '';
+        const abs = resolveAppSourceFile(projectRoot, rel);
+        if (!abs) {
+          res.statusCode = 400;
+          res.end('Invalid or disallowed path');
+          return;
+        }
+
+        if (req.method === 'GET') {
+          if (!fs.existsSync(abs)) {
+            res.statusCode = 404;
+            res.end('Not found');
+            return;
+          }
+          res.setHeader('Content-Type', 'text/plain; charset=utf-8');
+          res.end(fs.readFileSync(abs, 'utf8'));
+          return;
+        }
+
+        if (req.method === 'POST') {
+          void readBody(req).then((body) => {
+            fs.mkdirSync(path.dirname(abs), { recursive: true });
+            fs.writeFileSync(abs, body, 'utf8');
+            const mod =
+              server?.moduleGraph.getModuleById(abs) ??
+              [...(server?.moduleGraph.urlToModuleMap.values() ?? [])].find((m) => m.file === abs);
+            if (mod && server) server.moduleGraph.invalidateModule(mod);
+            bumpLivePreview(server);
+            res.statusCode = 204;
+            res.end();
+          });
+          return;
+        }
+
+        next();
+      });
+    },
+    resolveId(id) {
+      const clean = id.split('?')[0];
+      if (
+        clean === '/@playground/live.tsx' ||
+        clean === 'virtual:playground-live' ||
+        clean.endsWith('/.cache/playground-live.tsx')
+      ) {
+        return liveFile;
+      }
+      return undefined;
+    },
+  };
+}
+
+export function readDefaultLiveSource(projectRoot: string): string {
+  return fs.readFileSync(path.join(projectRoot, 'src/playground/defaultLive.tsx'), 'utf8');
+}
+
+export function projectRootDir(): string {
+  return path.dirname(fileURLToPath(import.meta.url));
+}

playground.html

@@ -0,0 +1,12 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Component Playground</title>
+  </head>
+  <body style="margin:0;background:#0f1115;color:#e8eaed">
+    <div id="root"></div>
+    <script type="module" src="./src/playground/main.tsx?v=react-dedupe-1"></script>
+  </body>
+</html>

src/app/components/AccountDataEditor.tsx

@@ -1,5 +1,5 @@
 import React, { FormEventHandler, useCallback, useEffect, useMemo, useRef, useState } from 'react';
-import { Box, Text, IconButton, Input, Button, TextAreaComponent as TextArea, color, Spinner, Chip, Scroll, config } from 'folds';
+import { Box, Text, IconButton, Input, Button, TextArea, color, Spinner, Chip, Scroll, config } from 'folds';
 import { Icon, Icons } from './icons';
 import { MatrixError } from 'matrix-js-sdk';
 import { Cursor } from '../plugins/text-area';
@@ -154,7 +154,7 @@ function AccountDataEdit({
         <Box shrink="No">
           <Text size="L400">JSON Content</Text>
         </Box>
-        <TextAreaComponent
+        <TextArea
           ref={textAreaRef}
           name="contentTextArea"
           style={{

src/app/components/AnimatedOutlet.tsx

@@ -1,16 +1,53 @@
-import React from 'react';
+import React, { useMemo } from 'react';
 import { Outlet, useLocation } from 'react-router-dom';
 
+const decodeSegment = (segment: string): string => {
+  let decoded = segment;
+  try {
+    let next = decodeURIComponent(decoded);
+    while (next !== decoded) {
+      decoded = next;
+      next = decodeURIComponent(decoded);
+    }
+  } catch {
+    // keep partially decoded value
+  }
+  return decoded;
+};
+
 /**
- * Wrapper for Outlet that adds route-based animation
+ * Room routes are `:roomIdOrAlias/:eventId?/`. Jumping to an event (or clearing it)
- * Forces remount on route change by using location as key
+ * changes the pathname but not the room — keep the outlet mounted so we don't replay
+ * the route enter animation or remount drawers like Shared Media.
+ *
+ * Path segments are decoded so `!room:server` and `%21room%3Aserver` share a key.
+ */
+const getOutletTransitionKey = (pathname: string): string => {
+  const segments = pathname.split('/').filter(Boolean).map(decodeSegment);
+  if (segments.length === 0) return pathname;
+
+  // Matrix event IDs start with `$`
+  if (segments[segments.length - 1].startsWith('$')) {
+    segments.pop();
+  }
+
+  return `/${segments.join('/')}/`;
+};
+
+/**
+ * Wrapper for Outlet that adds route-based animation.
+ * Remounts (and animates) when leaving a room / switching rooms, not on same-room event hops.
  */
 export function AnimatedOutlet() {
   const location = useLocation();
+  const transitionKey = useMemo(
+    () => getOutletTransitionKey(location.pathname),
+    [location.pathname]
+  );
 
   return (
     <div
-      key={location.pathname}
+      key={transitionKey}
       data-route-transition="true"
       style={{
         flex: 1,

src/app/components/RenderMessageContent.tsx

@@ -1,4 +1,4 @@
-import React from 'react';
+import React, { KeyboardEvent, MouseEvent } from 'react';
 import { MsgType } from 'matrix-js-sdk';
 import { HTMLReactParserOptions } from 'html-react-parser';
 import { Opts } from 'linkifyjs';
@@ -49,6 +49,12 @@ type RenderMessageContentProps = {
   linkifyOpts: Opts;
   outlineAttachment?: boolean;
   disabledEmbedPatterns?: string[];
+  targetEventId?: string;
+  onJumboEmojiClick?: (
+    targetEventId: string,
+    body: string,
+    event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>
+  ) => void;
 };
 export function RenderMessageContent({
   displayName,
@@ -63,6 +69,8 @@ export function RenderMessageContent({
   linkifyOpts,
   outlineAttachment,
   disabledEmbedPatterns,
+  targetEventId,
+  onJumboEmojiClick,
 }: RenderMessageContentProps) {
   const renderUrlsPreview = (urls: string[]) => {
     let filteredUrls = urls.filter((url) => !testMatrixTo(url));
@@ -100,6 +108,11 @@ export function RenderMessageContent({
       </>
     );
   };
+  const handleJumboEmojiClick =
+    targetEventId && onJumboEmojiClick
+      ? (body: string, event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>) =>
+          onJumboEmojiClick(targetEventId, body, event)
+      : undefined;
   const renderCaption = () => {
     const content: IImageContent = getContent();
     if (content.filename && content.filename !== content.body) {
@@ -182,6 +195,7 @@ export function RenderMessageContent({
       <MText
         edited={edited}
         content={getContent()}
+        onJumboEmojiClick={handleJumboEmojiClick}
         renderBody={(props) => (
           <RenderBody
             {...props}
@@ -201,6 +215,7 @@ export function RenderMessageContent({
         displayName={displayName}
         edited={edited}
         content={getContent()}
+        onJumboEmojiClick={handleJumboEmojiClick}
         renderBody={(props) => (
           <RenderBody
             {...props}
@@ -219,6 +234,7 @@ export function RenderMessageContent({
       <MNotice
         edited={edited}
         content={getContent()}
+        onJumboEmojiClick={handleJumboEmojiClick}
         renderBody={(props) => (
           <RenderBody
             {...props}

src/app/components/editor/Editor.tsx

@@ -6,11 +6,9 @@ import React, {
   forwardRef,
   useCallback,
   useState,
-  useEffect,
-  useRef,
 } from 'react';
 import { Box, Scroll, Text } from 'folds';
-import { Descendant, Editor, createEditor, Transforms, Range, Element as SlateElement, Text as SlateText, Point } from 'slate';
+import { Descendant, Editor, createEditor, Element as SlateElement, Text as SlateText } from 'slate';
 import {
   Slate,
   Editable,
@@ -172,48 +170,6 @@ export const CustomEditor = forwardRef<HTMLDivElement, CustomEditorProps>(
       [editor, onKeyDown]
     );
 
-    const handleBeforeInput = useCallback(
-      (event: Event) => {
-        const inputEvent = event as InputEvent;
-        
-        // Handle autocorrect replacement that causes text duplication
-        if (inputEvent.inputType === 'insertReplacementText' || 
-            inputEvent.inputType === 'insertFromComposition') {
-          const { selection } = editor;
-          if (!selection) return;
-
-          // Get the data being inserted
-          const data = inputEvent.data || inputEvent.dataTransfer?.getData('text/plain');
-          
-          if (data) {
-            event.preventDefault();
-            
-            // If there's selected text, delete it first
-            if (selection && !Range.isCollapsed(selection)) {
-              Transforms.delete(editor, { at: selection });
-            }
-            
-            // Insert the replacement text
-            editor.insertText(data);
-          }
-        }
-      },
-      [editor]
-    );
-
-    const editableRef = useRef<HTMLDivElement>(null);
-
-    useEffect(() => {
-      const editableElement = editableRef.current?.querySelector('[data-slate-editor="true"]');
-      if (!editableElement) return;
-
-      editableElement.addEventListener('beforeinput', handleBeforeInput, { capture: true });
-      
-      return () => {
-        editableElement.removeEventListener('beforeinput', handleBeforeInput, { capture: true });
-      };
-    }, [handleBeforeInput]);
-
     const renderPlaceholder = useCallback(
       ({ attributes, children }: RenderPlaceholderProps) => (
         <span {...attributes} className={css.EditorPlaceholderContainer}>
@@ -256,10 +212,9 @@ export const CustomEditor = forwardRef<HTMLDivElement, CustomEditorProps>(
               className={css.EditorTextareaScroll}
               variant="SurfaceVariant"
               style={scrollStyle}
-              size="300"
+              size="0"
               visibility="Hover"
               hideTrack
-              ref={editableRef}
             >
               <Editable
                 data-editable-name={editableName}

src/app/components/message/MsgTypeRenderers.tsx

@@ -27,6 +27,7 @@ import {
   MATRIX_SPOILER_REASON_PROPERTY_NAME,
 } from '../../../types/matrix/common';
 import { StationeryMedia, hashStationerySeed, stationeryMediaRot } from './StationeryMedia';
+import { getJumboEmojiInteractionProps, JumboEmojiClickHandler } from '../../features/room/emoji-confetti/jumboEmojiInteraction';
 import { FALLBACK_MIMETYPE, getBlobSafeMimeType } from '../../utils/mimeTypes';
 import { parseGeoUri, scaleYDimension } from '../../utils/common';
 import { resolveAttachmentBoxSize } from '../../state/mediaDimensionCache';
@@ -78,8 +79,9 @@ type MTextProps = {
   renderBody: (props: RenderBodyProps) => ReactNode;
   renderUrlsPreview?: (urls: string[]) => ReactNode;
   style?: CSSProperties;
+  onJumboEmojiClick?: JumboEmojiClickHandler;
 };
-export function MText({ edited, content, renderBody, renderUrlsPreview, style }: MTextProps) {
+export function MText({ edited, content, renderBody, renderUrlsPreview, style, onJumboEmojiClick }: MTextProps) {
   const { body, formatted_body: customBody } = content;
 
   if (typeof body !== 'string') return <BrokenContent />;
@@ -89,13 +91,20 @@ export function MText({ edited, content, renderBody, renderUrlsPreview, style }:
     : undefined;
   const urlsMatch = renderUrlsPreview && trimmedBody.match(URL_REG);
   const urls = urlsMatch ? [...new Set(urlsMatch)] : undefined;
+  const isJumboEmoji = JUMBO_EMOJI_REG.test(trimmedBody);
+  const jumboEmojiInteraction = getJumboEmojiInteractionProps({
+    body: trimmedBody,
+    isJumboEmoji,
+    onJumboEmojiClick,
+  });
 
   return (
     <>
       <MessageTextBody
         preWrap={typeof customBody !== 'string'}
-        jumboEmoji={JUMBO_EMOJI_REG.test(trimmedBody)}
+        jumboEmoji={isJumboEmoji}
         style={style}
+        {...jumboEmojiInteraction}
       >
         {renderBody({
           body: trimmedBody,
@@ -114,6 +123,7 @@ type MEmoteProps = {
   content: Record<string, unknown>;
   renderBody: (props: RenderBodyProps) => ReactNode;
   renderUrlsPreview?: (urls: string[]) => ReactNode;
+  onJumboEmojiClick?: JumboEmojiClickHandler;
 };
 export function MEmote({
   displayName,
@@ -121,6 +131,7 @@ export function MEmote({
   content,
   renderBody,
   renderUrlsPreview,
+  onJumboEmojiClick,
 }: MEmoteProps) {
   const { body, formatted_body: customBody } = content;
 
@@ -131,20 +142,28 @@ export function MEmote({
     : undefined;
   const urlsMatch = renderUrlsPreview && trimmedBody.match(URL_REG);
   const urls = urlsMatch ? [...new Set(urlsMatch)] : undefined;
+  const isJumboEmoji = JUMBO_EMOJI_REG.test(trimmedBody);
+  const jumboEmojiInteraction = getJumboEmojiInteractionProps({
+    body: trimmedBody,
+    isJumboEmoji,
+    onJumboEmojiClick,
+  });
 
   return (
     <>
       <MessageTextBody
         emote
         preWrap={typeof customBody !== 'string'}
-        jumboEmoji={JUMBO_EMOJI_REG.test(trimmedBody)}
+        jumboEmoji={isJumboEmoji}
       >
         <b>{`${displayName} `}</b>
+        <span {...jumboEmojiInteraction}>
           {renderBody({
             body: trimmedBody,
             customBody: trimmedCustomBody,
           })}
           {edited && <MessageEditedContent />}
+        </span>
       </MessageTextBody>
       {renderUrlsPreview && urls && urls.length > 0 && renderUrlsPreview(urls)}
     </>
@@ -156,8 +175,9 @@ type MNoticeProps = {
   content: Record<string, unknown>;
   renderBody: (props: RenderBodyProps) => ReactNode;
   renderUrlsPreview?: (urls: string[]) => ReactNode;
+  onJumboEmojiClick?: JumboEmojiClickHandler;
 };
-export function MNotice({ edited, content, renderBody, renderUrlsPreview }: MNoticeProps) {
+export function MNotice({ edited, content, renderBody, renderUrlsPreview, onJumboEmojiClick }: MNoticeProps) {
   const { body, formatted_body: customBody } = content;
 
   if (typeof body !== 'string') return <BrokenContent />;
@@ -167,13 +187,20 @@ export function MNotice({ edited, content, renderBody, renderUrlsPreview }: MNot
     : undefined;
   const urlsMatch = renderUrlsPreview && trimmedBody.match(URL_REG);
   const urls = urlsMatch ? [...new Set(urlsMatch)] : undefined;
+  const isJumboEmoji = JUMBO_EMOJI_REG.test(trimmedBody);
+  const jumboEmojiInteraction = getJumboEmojiInteractionProps({
+    body: trimmedBody,
+    isJumboEmoji,
+    onJumboEmojiClick,
+  });
 
   return (
     <>
       <MessageTextBody
         notice
         preWrap={typeof customBody !== 'string'}
-        jumboEmoji={JUMBO_EMOJI_REG.test(trimmedBody)}
+        jumboEmoji={isJumboEmoji}
+        {...jumboEmojiInteraction}
       >
         {renderBody({
           body: trimmedBody,

src/app/components/message/Reaction.css.ts

@@ -53,6 +53,17 @@ export const Reaction = style([
   },
 ]);
 
+export const ReactionText = style([
+  DefaultReset,
+  {
+    minWidth: 0,
+    maxWidth: toRem(150),
+    display: 'inline-flex',
+    alignItems: 'center',
+    lineHeight: toRem(20),
+  },
+]);
+
 export const ReactionStack = style([
   DefaultReset,
   {
@@ -66,7 +77,7 @@ export const ReactionStack = style([
   },
 ]);
 
-export const ReactionText = style([
+export const ReactionSticker = style([
   DefaultReset,
   {
     minWidth: 0,
@@ -77,11 +88,6 @@ export const ReactionText = style([
     lineHeight: toRem(20),
     gridArea: '1 / 1',
     transformOrigin: 'center center',
-    // Fan each stacked copy so count>1 reads as multiple stickers
-    transform: `translate(
-      calc(var(--sticker-i, 0) * 7px - 2px),
-      calc(var(--sticker-i, 0) * -5px)
-    ) rotate(calc((var(--sticker-i, 0) - 1) * 12deg))`,
   },
 ]);
 

src/app/components/message/Reaction.tsx

@@ -6,6 +6,7 @@ import * as css from './Reaction.css';
 import { getHexcodeForEmoji, getShortcodeFor } from '../../plugins/emoji';
 import { getMemberDisplayName } from '../../utils/room';
 import { eventWithShortcode, getMxIdLocalPart, mxcUrlToHttp } from '../../utils/matrix';
+import { isStationeryTheme, useTheme } from '../../hooks/useTheme';
 
 const MAX_STICKER_STACK = 4;
 
@@ -18,13 +19,48 @@ export const Reaction = as<
     useAuthentication?: boolean;
   }
 >(({ className, mx, count, reaction, useAuthentication, ...props }, ref) => {
-  const stackCount = Math.min(Math.max(count, 1), MAX_STICKER_STACK);
+  const theme = useTheme();
-  const showCount = count > 2;
+  const stationery = isStationeryTheme(theme);
   const isCustomEmoji = reaction.startsWith('mxc://');
   const customSrc = isCustomEmoji
     ? mxcUrlToHttp(mx, reaction, useAuthentication) ?? reaction
     : undefined;
 
+  const emoji = isCustomEmoji ? (
+    <img className={css.ReactionImg} src={customSrc} alt={reaction} />
+  ) : (
+    <Text as="span" size="Inherit" truncate>
+      {reaction}
+    </Text>
+  );
+
+  // Stationery: fanned sticker stack. Everywhere else: compact emoji + count.
+  if (!stationery) {
+    return (
+      <Box
+        as="button"
+        className={classNames(css.Reaction, className)}
+        alignItems="Center"
+        shrink="No"
+        gap="200"
+        data-reaction=""
+        aria-label={`${reaction}, ${count}`}
+        {...props}
+        ref={ref}
+      >
+        <Text className={css.ReactionText} as="span" size="T400">
+          {emoji}
+        </Text>
+        <Text as="span" size="T300" data-reaction-count="">
+          {count}
+        </Text>
+      </Box>
+    );
+  }
+
+  const stackCount = Math.min(Math.max(count, 1), MAX_STICKER_STACK);
+  const showCount = count > 2;
+
   return (
     <Box
       as="button"
@@ -40,12 +76,11 @@ export const Reaction = as<
     >
       <span className={css.ReactionStack} data-reaction-stack-layer="">
         {Array.from({ length: stackCount }, (_, i) => {
-          // Draw back-to-front so the top sticker is the last layer
           const layer = stackCount - 1 - i;
           return (
             <Text
               key={layer}
-              className={css.ReactionText}
+              className={css.ReactionSticker}
               as="span"
               size="T400"
               data-reaction-sticker=""

src/app/components/message/layout/layout.css.ts

@@ -242,6 +242,10 @@ export const MessageTextBody = recipe({
         lineHeight: 1,
         overflow: 'visible',
         overflowY: 'visible',
+        paddingBottom: config.space.S200,
+        cursor: 'pointer',
+        position: 'relative',
+        zIndex: 5,
       },
     },
     emote: {
@@ -262,6 +266,8 @@ globalStyle(`${jumboEmojiClass} .${htmlCss.EmoticonBase}`, {
   padding: 0,
   overflow: 'visible',
   verticalAlign: 'middle',
+  position: 'relative',
+  zIndex: 1,
 });
 
 globalStyle(`${jumboEmojiClass} .${htmlCss.Emoticon.classNames.base}`, {

src/app/components/update-notification/UpdateNotification.css.ts

@@ -1,95 +1,149 @@
-import { style } from '@vanilla-extract/css';
+import { keyframes, style } from '@vanilla-extract/css';
 import { color, config, toRem } from 'folds';
 
-export const CheckButtonContainer = style({
+const indeterminate = keyframes({
+  '0%': { transform: 'translateX(-100%)' },
+  '100%': { transform: 'translateX(250%)' },
+});
+
+export const IdleSlot = style({
   display: 'flex',
   alignItems: 'center',
   justifyContent: 'center',
-  height: '32px',
+  height: '100%',
-  width: '32px',
+  WebkitAppRegion: 'no-drag',
+  flexShrink: 0,
 });
 
-export const CheckButton = style({
+export const GhostCheck = style({
   all: 'unset',
   display: 'flex',
   alignItems: 'center',
   justifyContent: 'center',
-  padding: 0,
+  width: toRem(28),
+  height: toRem(28),
   borderRadius: config.radii.R300,
-  cursor: 'pointer',
+  color: color.Surface.OnContainer,
-  color: color.Secondary.Main,
-  backgroundColor: 'transparent',
-  transition: 'opacity 0.2s, background-color 0.15s',
-  height: '32px',
-  width: '32px',
   opacity: 0,
-  WebkitAppRegion: 'no-drag',
+  cursor: 'pointer',
-  flexShrink: 0,
+  transition: 'opacity 0.15s ease, background-color 0.15s ease',
-
   selectors: {
     '&[data-visible="true"]': {
-      opacity: 0.7,
+      opacity: 0.65,
     },
-  },
+    '&:hover': {
-
+      opacity: 1,
-  ':hover': {
       backgroundColor: color.Surface.ContainerHover,
-    opacity: 1,
     },
-
-  ':active': {
-    backgroundColor: color.Surface.ContainerActive,
-  },
-
-  ':focus-visible': {
-    outline: `2px solid ${color.Secondary.Main}`,
-    outlineOffset: '2px',
-    opacity: 1,
   },
 });
 
-export const UpdateButton = style({
+export const Bar = style({
-  all: 'unset',
   display: 'flex',
   alignItems: 'center',
-  justifyContent: 'center',
+  gap: config.space.S200,
-  padding: 0,
+  height: toRem(22),
+  minWidth: toRem(120),
+  maxWidth: toRem(200),
+  padding: `0 ${config.space.S200}`,
   borderRadius: config.radii.R300,
-  cursor: 'pointer',
+  backgroundColor: color.SurfaceVariant.Container,
-  color: color.Success.Main,
+  color: color.SurfaceVariant.OnContainer,
-  backgroundColor: 'transparent',
-  transition: 'background-color 0.15s',
-  height: '32px',
-  width: '32px',
   WebkitAppRegion: 'no-drag',
   flexShrink: 0,
+  boxSizing: 'border-box',
+});
 
-  ':hover': {
+export const BarTrack = style({
-    backgroundColor: color.Surface.ContainerHover,
+  position: 'relative',
+  flex: 1,
+  height: toRem(4),
+  borderRadius: toRem(2),
+  overflow: 'hidden',
+  backgroundColor: color.Surface.ContainerLine,
+  minWidth: toRem(64),
+});
+
+export const BarFill = style({
+  position: 'absolute',
+  inset: '0 auto 0 0',
+  height: '100%',
+  borderRadius: 'inherit',
+  backgroundColor: color.Success.Main,
+  transition: 'width 120ms linear',
+});
+
+export const BarIndeterminate = style({
+  position: 'absolute',
+  top: 0,
+  bottom: 0,
+  left: 0,
+  width: '40%',
+  borderRadius: 'inherit',
+  backgroundColor: color.Secondary.Main,
+  animation: `${indeterminate} 1s ease-in-out infinite`,
+});
+
+export const BarLabel = style({
+  flexShrink: 0,
+  fontVariantNumeric: 'tabular-nums',
+  opacity: 0.9,
+  minWidth: toRem(28),
+  textAlign: 'right',
+});
+
+export const Chip = style({
+  height: toRem(22),
+  maxWidth: toRem(260),
+  padding: `0 ${config.space.S100} 0 ${config.space.S200}`,
+  borderRadius: config.radii.R300,
+  backgroundColor: color.Success.Container,
+  color: color.Success.OnContainer,
+  WebkitAppRegion: 'no-drag',
+  flexShrink: 0,
+  boxSizing: 'border-box',
+});
+
+export const ChipText = style({
+  maxWidth: toRem(140),
+});
+
+export const ChipAction = style({
+  all: 'unset',
+  display: 'inline-flex',
+  alignItems: 'center',
+  height: toRem(18),
+  padding: `0 ${config.space.S200}`,
+  borderRadius: config.radii.R300,
+  backgroundColor: color.Success.Main,
+  color: color.Success.OnMain,
+  fontSize: toRem(11),
+  fontWeight: 600,
+  cursor: 'pointer',
+  whiteSpace: 'nowrap',
+  selectors: {
+    '&:hover': {
+      filter: 'brightness(1.05)',
     },
-
-  ':active': {
-    backgroundColor: color.Surface.ContainerActive,
-  },
-
-  ':focus-visible': {
-    outline: `2px solid ${color.Success.Main}`,
-    outlineOffset: '2px',
   },
 });
 
-export const UpdateMenu = style({
+export const ChipDismiss = style({
-  minWidth: toRem(280),
+  all: 'unset',
-  maxWidth: toRem(320),
+  display: 'inline-flex',
-  backgroundColor: color.Surface.Container,
+  alignItems: 'center',
-  borderRadius: config.radii.R400,
+  justifyContent: 'center',
-  boxShadow: config.shadow.E400,
+  width: toRem(18),
-  border: `1px solid ${color.Surface.ContainerLine}`,
+  height: toRem(18),
-});
+  borderRadius: config.radii.R300,
-
+  cursor: 'pointer',
-export const ProgressText = style({
+  opacity: 0.7,
-  color: color.Success.Main,
+  fontSize: toRem(14),
-  fontWeight: 500,
+  lineHeight: 1,
-  minWidth: toRem(35),
+  selectors: {
-  textAlign: 'center',
+    '&:hover': {
+      opacity: 1,
+      backgroundColor: 'rgba(0,0,0,0.08)',
+    },
+  },
 });

src/app/components/update-notification/UpdateNotification.tsx

@@ -1,138 +1,136 @@
-import React, { useState, useEffect } from 'react';
+import React, { useState, useEffect, useCallback } from 'react';
-import { Box, Spinner, Text, Menu, PopOut, Button, config } from 'folds';
+import { Box, Text } from 'folds';
 import * as css from './UpdateNotification.css';
 
 interface UpdateInfo {
   version: string;
   releaseNotes?: string;
   releaseDate?: string;
+  mock?: boolean;
 }
 
 interface DownloadProgress {
   percent: number;
   transferred: number;
   total: number;
+  mock?: boolean;
 }
 
+type UpdaterPhase = 'idle' | 'checking' | 'available' | 'downloading' | 'ready';
+
 export function UpdateNotification() {
-  const [updateAvailable, setUpdateAvailable] = useState(false);
+  const [phase, setPhase] = useState<UpdaterPhase>('idle');
   const [updateInfo, setUpdateInfo] = useState<UpdateInfo | null>(null);
-  const [downloading, setDownloading] = useState(false);
   const [downloadProgress, setDownloadProgress] = useState(0);
-  const [updateReady, setUpdateReady] = useState(false);
+  const [isMock, setIsMock] = useState(false);
-  const [checking, setChecking] = useState(false);
+  const [hovered, setHovered] = useState(false);
-  const [isHovered, setIsHovered] = useState(false);
-  const [menuAnchor, setMenuAnchor] = useState<{ x: number; y: number; width: number; height: number } | undefined>(undefined);
 
   useEffect(() => {
-    // Check if we're in Electron environment
+    const electron = (window as any).electron;
-    if (typeof window === 'undefined' || !(window as any).electron?.updater) {
+    if (!electron?.updater) return undefined;
-      return;
+
+    const { updater } = electron;
+
+    updater.isMock?.().then((result: { success?: boolean; data?: { mock?: boolean } }) => {
+      if (result?.data?.mock) setIsMock(true);
+    }).catch(() => {});
+
+    updater.onUpdateAvailable((info: UpdateInfo) => {
+      setUpdateInfo(info);
+      if (info.mock) setIsMock(true);
+      setPhase('available');
+      setDownloadProgress(0);
+    });
+
+    updater.onUpdateDownloadProgress((progress: DownloadProgress) => {
+      setPhase('downloading');
+      setDownloadProgress(Math.min(100, Math.round(progress.percent)));
+    });
+
+    updater.onUpdateDownloaded((info: UpdateInfo) => {
+      setUpdateInfo(info);
+      setPhase('ready');
+      setDownloadProgress(100);
+    });
+
+    const onNotAvailable = () => {
+      setPhase('idle');
+      setUpdateInfo(null);
+      setDownloadProgress(0);
+    };
+    // Optional channel — ignore if preload doesn't expose a dedicated listener
+    if (electron.updater.onUpdateNotAvailable) {
+      electron.updater.onUpdateNotAvailable(onNotAvailable);
     }
 
-    const { updater } = (window as any).electron;
+    return undefined;
-
-    // Listen for update available
-    updater.onUpdateAvailable((info: UpdateInfo) => {
-      console.log('Update available:', info.version);
-      setUpdateAvailable(true);
-      setUpdateInfo(info);
-      setDownloading(false);
-      setUpdateReady(false);
-      setChecking(false);
-    });
-
-    // Listen for download progress
-    updater.onUpdateDownloadProgress((progress: DownloadProgress) => {
-      setDownloadProgress(Math.round(progress.percent));
-    });
-
-    // Listen for update downloaded
-    updater.onUpdateDownloaded((info: UpdateInfo) => {
-      console.log('Update downloaded:', info.version);
-      setDownloading(false);
-      setUpdateReady(true);
-    });
-
-    // Cleanup - IPC listeners don't need manual cleanup in this case
   }, []);
 
-  const handleCheckForUpdates = async () => {
+  const handleCheck = useCallback(async () => {
-    setChecking(true);
+    setPhase('checking');
     try {
       const result = await (window as any).electron.updater.checkForUpdates();
-      console.log('Update check result:', result);
+      if (!result?.success) {
-      
+        setPhase('idle');
-      // Handle error response (including dev mode error)
-      if (!result.success) {
-        console.warn('Update check failed:', result.error);
-        setChecking(false);
-        return;
       }
-      
+      // available event will advance phase; if nothing comes, fall back
-      // If no update found, show feedback briefly
+      window.setTimeout(() => {
-      setTimeout(() => {
+        setPhase((current) => (current === 'checking' ? 'idle' : current));
-        if (!updateAvailable) {
+      }, 4000);
-          setChecking(false);
+    } catch {
+      setPhase('idle');
     }
-      }, 2000);
+  }, []);
-    } catch (error) {
-      console.error('Failed to check for updates:', error);
-      setChecking(false);
-    }
-  };
 
-  const handleDownload = async () => {
+  const handleDownload = useCallback(async () => {
-    setDownloading(true);
+    setPhase('downloading');
     setDownloadProgress(0);
     try {
       await (window as any).electron.updater.downloadUpdate();
-    } catch (error) {
+    } catch {
-      console.error('Failed to download update:', error);
+      setPhase('available');
-      setDownloading(false);
     }
-    setMenuAnchor(undefined);
+  }, []);
-  };
 
-  const handleInstall = async () => {
+  const handleInstall = useCallback(async () => {
     try {
       await (window as any).electron.updater.installUpdate();
-    } catch (error) {
+      if (isMock) {
-      console.error('Failed to install update:', error);
+        setPhase('idle');
+        setUpdateInfo(null);
+        setDownloadProgress(0);
       }
-  };
+    } catch {
-
+      // keep ready state
-  const handleMenuToggle = (event: React.MouseEvent<HTMLButtonElement>) => {
-    if (menuAnchor) {
-      setMenuAnchor(undefined);
-    } else {
-      const rect = event.currentTarget.getBoundingClientRect();
-      setMenuAnchor({ x: rect.x, y: rect.y, width: rect.width, height: rect.height });
     }
-  };
+  }, [isMock]);
+
+  const handleDismiss = useCallback(() => {
+    setPhase('idle');
+    setUpdateInfo(null);
+    setDownloadProgress(0);
+  }, []);
 
-  // Don't render anything if not in Electron
   if (typeof window === 'undefined' || !(window as any).electron?.updater) {
     return null;
   }
 
-  // Show check button if no update status
+  if (phase === 'idle') {
-  if (!updateAvailable && !updateReady && !checking) {
     return (
       <div
-        className={css.CheckButtonContainer}
+        className={css.IdleSlot}
-        onMouseEnter={() => setIsHovered(true)}
+        onMouseEnter={() => setHovered(true)}
-        onMouseLeave={() => setIsHovered(false)}
+        onMouseLeave={() => setHovered(false)}
       >
         <button
-          className={css.CheckButton}
-          data-visible={isHovered}
-          onClick={handleCheckForUpdates}
-          aria-label="Check for updates"
-          title="Check for updates"
           type="button"
+          className={css.GhostCheck}
+          data-visible={hovered || isMock ? 'true' : undefined}
+          onClick={handleCheck}
+          title={isMock ? 'Check for updates (mock)' : 'Check for updates'}
+          aria-label="Check for updates"
         >
-          <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
+          <svg width="14" height="14" viewBox="0 0 16 16" fill="none" aria-hidden>
             <path
               d="M8 2V10M8 10L5 7M8 10L11 7"
               stroke="currentColor"
@@ -140,109 +138,75 @@ export function UpdateNotification() {
               strokeLinecap="round"
               strokeLinejoin="round"
             />
-            <path
+            <path d="M3 14H13" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" />
-              d="M3 14H13"
-              stroke="currentColor"
-              strokeWidth="1.5"
-              strokeLinecap="round"
-            />
           </svg>
         </button>
       </div>
     );
   }
 
-  // Show checking state
+  if (phase === 'checking') {
-  if (checking) {
     return (
-      <button className={css.UpdateButton} disabled type="button">
+      <div className={css.Bar} title="Checking for updates…">
-        <Spinner variant="Secondary" size="50" />
+        <div className={css.BarTrack}>
-      </button>
+          <div className={css.BarIndeterminate} />
+        </div>
+        <Text className={css.BarLabel} size="L400">
+          Checking…
+        </Text>
+      </div>
     );
   }
 
-  // Show update available/ready state
+  if (phase === 'downloading') {
-  if (!updateAvailable && !updateReady) {
-    return null;
-  }
-
     return (
-    <>
+      <div
-      <button
+        className={css.Bar}
-        className={css.UpdateButton}
+        title={`Downloading update${updateInfo ? ` ${updateInfo.version}` : ''}… ${downloadProgress}%`}
-        onClick={handleMenuToggle}
-        aria-label={updateReady ? 'Update ready' : 'Update available'}
-        title={updateReady ? 'Update downloaded - click to install' : 'New version available'}
-        type="button"
       >
-        {downloading ? (
+        <div className={css.BarTrack}>
-          <Spinner variant="Secondary" size="50" />
+          <div className={css.BarFill} style={{ width: `${downloadProgress}%` }} />
-        ) : (
+        </div>
-          <svg width="16" height="16" viewBox="0 0 16 16" fill="none">
+        <Text className={css.BarLabel} size="L400">
-            <path
+          {downloadProgress}%
-              d="M8 2V10M8 10L5 7M8 10L11 7"
-              stroke="currentColor"
-              strokeWidth="1.5"
-              strokeLinecap="round"
-              strokeLinejoin="round"
-            />
-            <path
-              d="M3 14H13"
-              stroke="currentColor"
-              strokeWidth="1.5"
-              strokeLinecap="round"
-            />
-          </svg>
-        )}
-      </button>
-
-      <PopOut
-        anchor={menuAnchor}
-        position="Bottom"
-        align="End"
-        offset={8}
-        content={
-          <Menu className={css.UpdateMenu}>
-            <Box direction="Column" gap="200" style={{ padding: config.space.S300 }}>
-              <Box direction="Column" gap="100">
-                <Text size="H5" priority="400">
-                  {updateReady ? 'Update Ready' : 'Update Available'}
         </Text>
-                {updateInfo && (
+      </div>
-                  <Text size="T200" priority="300">
+    );
-                    Version {updateInfo.version}
-                  </Text>
-                )}
-              </Box>
-              
-              {updateReady ? (
-                <Button
-                  variant="Primary"
-                  size="400"
-                  onClick={handleInstall}
-                  fill="Solid"
-                >
-                  <Text size="B400">Install and Restart</Text>
-                </Button>
-              ) : (
-                <Button
-                  variant="Primary"
-                  size="400"
-                  onClick={handleDownload}
-                  disabled={downloading}
-                  fill="Solid"
-                >
-                  <Text size="B400">
-                    {downloading ? `Downloading ${downloadProgress}%` : 'Download Update'}
-                  </Text>
-                </Button>
-              )}
-            </Box>
-          </Menu>
   }
+
+  if (phase === 'ready') {
+    return (
+      <Box className={css.Chip} alignItems="Center" gap="100">
+        <Text className={css.ChipText} size="L400" truncate>
+          {isMock ? 'Mock ready' : 'Update ready'}
+          {updateInfo ? ` · ${updateInfo.version}` : ''}
+        </Text>
+        <button type="button" className={css.ChipAction} onClick={handleInstall}>
+          Restart
+        </button>
+      </Box>
+    );
+  }
+
+  // available
+  return (
+    <Box className={css.Chip} alignItems="Center" gap="100">
+      <Text className={css.ChipText} size="L400" truncate>
+        {isMock ? 'Mock update' : 'Update'}
+        {updateInfo ? ` ${updateInfo.version}` : ''}
+      </Text>
+      <button type="button" className={css.ChipAction} onClick={handleDownload}>
+        Download
+      </button>
+      <button
+        type="button"
+        className={css.ChipDismiss}
+        onClick={handleDismiss}
+        aria-label="Dismiss update"
+        title="Dismiss"
       >
-        {null}
+        ×
-      </PopOut>
+      </button>
-    </>
+    </Box>
   );
 }

src/app/features/common-settings/developer-tools/SendRoomEvent.tsx

@@ -1,6 +1,6 @@
 import React, { useCallback, useRef, useState, FormEventHandler, useEffect } from 'react';
 import { MatrixError } from 'matrix-js-sdk';
-import { Box, Chip, IconButton, Text, config, Button, Spinner, color, TextAreaComponent as TextArea, Input } from 'folds';
+import { Box, Chip, IconButton, Text, config, Button, Spinner, color, TextArea, Input } from 'folds';
 import { Icon, Icons } from '../../../components/icons';
 import { Page, PageHeader } from '../../../components/page';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
@@ -171,7 +171,7 @@ export function SendRoomEvent({ type, stateKey, requestClose }: SendRoomEventPro
             <Box shrink="No">
               <Text size="L400">JSON Content</Text>
             </Box>
-            <TextAreaComponent
+            <TextArea
               ref={textAreaRef}
               name="contentTextArea"
               style={{ fontFamily: 'monospace' }}

src/app/features/common-settings/developer-tools/StateEventEditor.tsx

@@ -1,5 +1,5 @@
 import React, { FormEventHandler, useCallback, useEffect, useMemo, useRef, useState } from 'react';
-import { Box, Text, IconButton, Chip, Scroll, config, TextAreaComponent as TextArea, color, Spinner, Button } from 'folds';
+import { Box, Text, IconButton, Chip, Scroll, config, TextArea, color, Spinner, Button } from 'folds';
 import { Icon, Icons } from '../../../components/icons';
 import { MatrixError } from 'matrix-js-sdk';
 import { Page, PageHeader } from '../../../components/page';
@@ -153,7 +153,7 @@ function StateEventEdit({ type, stateKey, content, requestClose }: StateEventEdi
         <Box shrink="No">
           <Text size="L400">JSON Content</Text>
         </Box>
-        <TextAreaComponent
+        <TextArea
           ref={textAreaRef}
           name="contentTextArea"
           style={{ fontFamily: 'monospace' }}

src/app/features/message-search/MessageSearch.tsx

@@ -16,7 +16,7 @@ import { useRoomNavigate } from '../../hooks/useRoomNavigate';
 import { ScrollTopContainer } from '../../components/scroll-top-container';
 import { ContainerColor } from '../../styles/ContainerColor.css';
 import { decodeSearchParamValueArray, encodeSearchParamValueArray } from '../../pages/pathUtils';
-import { useRooms } from '../../state/hooks/roomList';
+import { useRooms, useDirects } from '../../state/hooks/roomList';
 import { allRoomsAtom } from '../../state/room-list/roomList';
 import { mDirectAtom } from '../../state/mDirectList';
 import { MessageSearchParams, useMessageSearch } from './useMessageSearch';
@@ -53,7 +53,13 @@ export function MessageSearch({
 }: MessageSearchProps) {
   const mx = useMatrixClient();
   const mDirects = useAtomValue(mDirectAtom);
-  const allRooms = useRooms(mx, allRoomsAtom, mDirects);
+  const nonDirectRooms = useRooms(mx, allRoomsAtom, mDirects);
+  const directRooms = useDirects(mx, allRoomsAtom, mDirects);
+  // Include DMs — previously useRooms alone stripped them and broke DM search
+  const allRooms = useMemo(
+    () => [...nonDirectRooms, ...directRooms],
+    [nonDirectRooms, directRooms]
+  );
   const [mediaAutoLoad] = useSetting(settingsAtom, 'mediaAutoLoad');
   const [urlPreview] = useSetting(settingsAtom, 'urlPreview');
   const [legacyUsernameColor] = useSetting(settingsAtom, 'legacyUsernameColor');

src/app/features/message-search/useMessageSearch.ts

@@ -4,6 +4,9 @@ import {
   ISearchRequestBody,
   ISearchResponse,
   ISearchResult,
+  MatrixClient,
+  MatrixEvent,
+  Room,
   SearchOrderBy,
 } from 'matrix-js-sdk';
 import { useCallback } from 'react';
@@ -26,6 +29,12 @@ export type SearchResult = {
   groups: ResultGroup[];
 };
 
+const EMPTY_CONTEXT: IResultContext = {
+  events_before: [],
+  events_after: [],
+  profile_info: {},
+};
+
 const groupSearchResult = (results: ISearchResult[]): ResultGroup[] => {
   const groups: ResultGroup[] = [];
 
@@ -54,13 +63,108 @@ const groupSearchResult = (results: ISearchResult[]): ResultGroup[] => {
 const parseSearchResult = (result: ISearchResponse): SearchResult => {
   const roomEvents = result.search_categories.room_events;
 
-  const searchResult: SearchResult = {
+  return {
     nextToken: roomEvents?.next_batch,
     highlights: roomEvents?.highlights ?? [],
     groups: groupSearchResult(roomEvents?.results ?? []),
   };
+};
 
-  return searchResult;
+const eventToSearchEvent = (event: MatrixEvent, roomId: string): IEventWithRoomId | undefined => {
+  const eventId = event.getId();
+  if (!eventId) return undefined;
+
+  const content = event.getClearContent() ?? event.getContent();
+  return {
+    event_id: eventId,
+    type: event.getWireType() === 'm.room.encrypted' ? 'm.room.message' : event.getType(),
+    sender: event.getSender() ?? '',
+    origin_server_ts: event.getTs(),
+    content,
+    room_id: roomId,
+    unsigned: event.getUnsigned(),
+  };
+};
+
+const getSearchableBody = (event: MatrixEvent): string | undefined => {
+  if (event.isRedacted()) return undefined;
+
+  // After decryption, clear content is available even if wire type was encrypted
+  const content = event.getClearContent() ?? event.getContent();
+  if (!content || typeof content !== 'object') return undefined;
+
+  // Skip still-encrypted payloads
+  if (event.isEncrypted() && !event.isDecryptionFailure() && !event.getClearContent()) {
+    return undefined;
+  }
+
+  const msgType = content.msgtype;
+  if (msgType && msgType !== 'm.text' && msgType !== 'm.notice' && msgType !== 'm.emote') {
+    // Still allow filename / body on media
+  }
+
+  const body = typeof content.body === 'string' ? content.body : undefined;
+  const formatted =
+    typeof content.formatted_body === 'string' ? content.formatted_body : undefined;
+  return [body, formatted].filter(Boolean).join('\n') || undefined;
+};
+
+const highlightsFromTerm = (term: string): string[] =>
+  term
+    .split(/\s+/)
+    .map((part) => part.trim())
+    .filter((part) => part.length > 1);
+
+/**
+ * Search decrypted timeline events already loaded for a room.
+ * Server-side search cannot match E2EE message bodies.
+ */
+const searchLocalRoomTimeline = (room: Room, term: string): ResultItem[] => {
+  const needle = term.trim().toLowerCase();
+  if (!needle) return [];
+
+  const events = room.getLiveTimeline().getEvents();
+  const matches: ResultItem[] = [];
+
+  for (let i = events.length - 1; i >= 0; i -= 1) {
+    const event = events[i];
+    const haystack = getSearchableBody(event);
+    if (!haystack || !haystack.toLowerCase().includes(needle)) continue;
+
+    const searchEvent = eventToSearchEvent(event, room.roomId);
+    if (!searchEvent) continue;
+
+    matches.push({
+      rank: 1,
+      event: searchEvent,
+      context: EMPTY_CONTEXT,
+    });
+  }
+
+  return matches;
+};
+
+const isEncryptedRoom = (mx: MatrixClient, roomId: string): boolean => {
+  const room = mx.getRoom(roomId);
+  return !!room?.hasEncryptionStateEvent();
+};
+
+const searchLocalRooms = (mx: MatrixClient, roomIds: string[], term: string): SearchResult => {
+  const groups: ResultGroup[] = [];
+
+  roomIds.forEach((roomId) => {
+    const room = mx.getRoom(roomId);
+    if (!room) return;
+    const items = searchLocalRoomTimeline(room, term);
+    if (items.length > 0) {
+      groups.push({ roomId, items });
+    }
+  });
+
+  return {
+    highlights: highlightsFromTerm(term),
+    groups,
+  };
 };
 
 export type MessageSearchParams = {
@@ -69,19 +173,30 @@ export type MessageSearchParams = {
   rooms?: string[];
   senders?: string[];
 };
+
 export const useMessageSearch = (params: MessageSearchParams) => {
   const mx = useMatrixClient();
   const { term, order, rooms, senders } = params;
 
   const searchMessages = useCallback(
     async (nextBatch?: string) => {
-      if (!term)
+      if (!term) {
         return {
           highlights: [],
           groups: [],
         };
-      const limit = 20;
+      }
 
+      const scopedRooms = rooms?.filter(Boolean) ?? [];
+      const encryptedScoped =
+        scopedRooms.length > 0 && scopedRooms.every((roomId) => isEncryptedRoom(mx, roomId));
+
+      // Encrypted-only scope: server cannot see bodies — search loaded timeline locally
+      if (encryptedScoped && !nextBatch) {
+        return searchLocalRooms(mx, scopedRooms, term);
+      }
+
+      const limit = 20;
       const requestBody: ISearchRequestBody = {
         search_categories: {
           room_events: {
@@ -102,11 +217,33 @@ export const useMessageSearch = (params: MessageSearchParams) => {
         },
       };
 
+      try {
         const r = await mx.search({
           body: requestBody,
           next_batch: nextBatch === '' ? undefined : nextBatch,
         });
-      return parseSearchResult(r);
+        const parsed = parseSearchResult(r);
+
+        if (
+          parsed.groups.length === 0 &&
+          !nextBatch &&
+          scopedRooms.length > 0 &&
+          scopedRooms.some((roomId) => isEncryptedRoom(mx, roomId))
+        ) {
+          return searchLocalRooms(
+            mx,
+            scopedRooms.filter((id) => isEncryptedRoom(mx, id)),
+            term
+          );
+        }
+
+        return parsed;
+      } catch {
+        if (!nextBatch && scopedRooms.length > 0) {
+          return searchLocalRooms(mx, scopedRooms, term);
+        }
+        throw new Error('Message search failed');
+      }
     },
     [mx, term, order, rooms, senders]
   );

src/app/features/room/Room.tsx

@@ -3,9 +3,10 @@ import { Box, Line } from 'folds';
 import { decodeRouteParam } from '../../pages/pathUtils';
 import { useParams } from 'react-router-dom';
 import { isKeyHotkey } from 'is-hotkey';
-import { useSetAtom } from 'jotai';
+import { useAtom, useSetAtom } from 'jotai';
 import { RoomView } from './RoomView';
 import { MembersDrawer } from './MembersDrawer';
+import { MediaDrawer } from './room-media-menu';
 import { ScreenSize, useScreenSizeContext } from '../../hooks/useScreenSize';
 import { useSetting } from '../../state/hooks/settings';
 import { settingsAtom } from '../../state/settings';
@@ -16,6 +17,7 @@ import { useMarkAsRead } from '../../hooks/useMarkAsRead';
 import { useMatrixClient } from '../../hooks/useMatrixClient';
 import { useRoomMembers } from '../../hooks/useRoomMembers';
 import { activeRoomIdAtom } from '../../state/activeRoom';
+import { isMediaDrawerAtom } from '../../state/mediaDrawer';
 import { isForum } from '../../utils/room';
 import { ForumRoomView } from './ForumRoomView';
 
@@ -26,13 +28,18 @@ export function Room() {
   const mx = useMatrixClient();
   const setActiveRoomId = useSetAtom(activeRoomIdAtom);
 
-  const [isDrawer] = useSetting(settingsAtom, 'isPeopleDrawer');
+  const [isPeopleDrawer] = useSetting(settingsAtom, 'isPeopleDrawer');
+  const [isMediaDrawer] = useAtom(isMediaDrawerAtom);
   const [hideActivity] = useSetting(settingsAtom, 'hideActivity');
   const screenSize = useScreenSizeContext();
   const powerLevels = usePowerLevels(room);
   const members = useRoomMembers(mx, room.roomId);
   const markAsRead = useMarkAsRead(mx);
   const forumRoom = isForum(room);
+  const skinny = screenSize !== ScreenSize.Desktop;
+  const showMediaSolo = skinny && isMediaDrawer;
+  const showRightDrawer =
+    !skinny && (isPeopleDrawer || isMediaDrawer);
 
   // Update titlebar with current room ID
   useEffect(() => {
@@ -55,11 +62,21 @@ export function Room() {
   return (
     <PowerLevelsContextProvider value={powerLevels}>
       <Box grow="Yes">
-        {forumRoom ? <ForumRoomView room={room} eventId={eventId} /> : <RoomView room={room} eventId={eventId} />}
+        {!showMediaSolo &&
-        {screenSize === ScreenSize.Desktop && isDrawer && (
+          (forumRoom ? (
+            <ForumRoomView room={room} eventId={eventId} />
+          ) : (
+            <RoomView room={room} eventId={eventId} />
+          ))}
+        {showMediaSolo && <MediaDrawer room={room} solo />}
+        {!showMediaSolo && showRightDrawer && (
           <>
             <Line variant="Background" direction="Vertical" size="300" />
+            {isMediaDrawer ? (
+              <MediaDrawer room={room} />
+            ) : (
               <MembersDrawer key={room.roomId} room={room} members={members} />
+            )}
           </>
         )}
       </Box>

src/app/features/room/RoomInput.css.ts

@@ -6,7 +6,8 @@ export const RoomInputWrap = style({
   width: '100%',
 });
 
-globalStyle(`${RoomInputWrap} .${editorCss.Editor}`, {
+/* Notebook-flat composer chrome — Stationery only (other themes keep Editor inset border) */
+globalStyle(`.stationery ${RoomInputWrap} .${editorCss.Editor}`, {
   borderRadius: 0,
   boxShadow: 'none',
   borderTop: `${config.borderWidth.B300} solid ${color.SurfaceVariant.ContainerLine}`,

src/app/features/room/RoomInput.tsx

@@ -45,7 +45,6 @@ import { EmojiBoard, EmojiBoardTab } from '../../components/emoji-board';
 import { UseStateProvider } from '../../components/UseStateProvider';
 import {
   TUploadContent,
-  encryptFile,
   getImageInfo,
   getMxIdLocalPart,
   mxcUrlToHttp,
@@ -54,6 +53,7 @@ import { useTypingStatusUpdater } from '../../hooks/useTypingStatusUpdater';
 import { useFilePicker } from '../../hooks/useFilePicker';
 import { useFilePasteHandler } from '../../hooks/useFilePasteHandler';
 import { useFileDropZone } from '../../hooks/useFileDrop';
+import { useRoomUploadFiles } from '../../hooks/useRoomUploadFiles';
 import {
   TUploadItem,
   TUploadMetadata,
@@ -76,7 +76,6 @@ import {
   createUploadFamilyObserverAtom,
 } from '../../state/upload';
 import { getImageUrlBlob, loadImageElement } from '../../utils/dom';
-import { safeFile } from '../../utils/mimeTypes';
 import { fulfilledPromiseSettledResult } from '../../utils/common';
 import { useSetting } from '../../state/hooks/settings';
 import { settingsAtom } from '../../state/settings';
@@ -101,7 +100,7 @@ import colorMXID from '../../../util/colorMXID';
 import { useIsDirectRoom } from '../../hooks/useRoom';
 import { useAccessiblePowerTagColors, useGetMemberPowerTag } from '../../hooks/useMemberPowerTag';
 import { useRoomCreators } from '../../hooks/useRoomCreators';
-import { useTheme } from '../../hooks/useTheme';
+import { isStationeryTheme, useTheme } from '../../hooks/useTheme';
 import { useRoomCreatorsTag } from '../../hooks/useRoomCreatorsTag';
 import { usePowerLevelTags } from '../../hooks/usePowerLevelTags';
 import { useComposingCheck } from '../../hooks/useComposingCheck';
@@ -224,42 +223,13 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
       });
     }, [commands]);
 
+    const { handleFiles: enqueueFiles } = useRoomUploadFiles(room);
     const handleFiles = useCallback(
       async (files: File[]) => {
         setUploadBoard(true);
-        const safeFiles = files.map(safeFile);
+        await enqueueFiles(files);
-        const fileItems: TUploadItem[] = [];
-
-        if (room.hasEncryptionStateEvent()) {
-          const encryptFiles = fulfilledPromiseSettledResult(
-            await Promise.allSettled(safeFiles.map((f) => encryptFile(f)))
-          );
-          encryptFiles.forEach((ef) =>
-            fileItems.push({
-              ...ef,
-              metadata: {
-                markedAsSpoiler: false,
       },
-            })
+      [enqueueFiles]
-          );
-        } else {
-          safeFiles.forEach((f) =>
-            fileItems.push({
-              file: f,
-              originalFile: f,
-              encInfo: undefined,
-              metadata: {
-                markedAsSpoiler: false,
-              },
-            })
-          );
-        }
-        setSelectedFiles({
-          type: 'PUT',
-          item: fileItems,
-        });
-      },
-      [setSelectedFiles, room]
     );
     const pickFile = useFilePicker(handleFiles, true);
     const handlePaste = useFilePasteHandler(handleFiles);
@@ -724,7 +694,9 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
                     backgroundColor: color.SurfaceVariant.Container,
                     border: `${config.borderWidth.B300} solid ${color.SurfaceVariant.ContainerLine}`,
                     borderBottom: 'none',
-                    borderRadius: 0,
+                    borderRadius: isStationeryTheme(theme) ? 0 : undefined,
+                    borderTopLeftRadius: isStationeryTheme(theme) ? undefined : config.radii.R400,
+                    borderTopRightRadius: isStationeryTheme(theme) ? undefined : config.radii.R400,
                     marginBottom: config.space.S100,
                   }}
                   direction="Column"

src/app/features/room/RoomTimeline.css.ts

@@ -9,7 +9,8 @@ export const TimelineFloat = recipe({
       position: 'absolute',
       left: '50%',
       transform: 'translateX(-50%)',
-      zIndex: 1,
+      // Above timeline media carousels / sticky message chrome
+      zIndex: 10,
       minWidth: 'max-content',
     },
   ],

src/app/features/room/RoomTimeline.tsx

@@ -85,7 +85,6 @@ import {
   useIntersectionObserver,
 } from '../../hooks/useIntersectionObserver';
 import { useMarkAsRead } from '../../hooks/useMarkAsRead';
-import { useDebounce } from '../../hooks/useDebounce';
 import { getResizeObserverEntry, useResizeObserver } from '../../hooks/useResizeObserver';
 import * as css from './RoomTimeline.css';
 import { inSameDay, minuteDifference, timeDayMonthYear, today, yesterday } from '../../utils/time';
@@ -104,9 +103,12 @@ import { roomToParentsAtom } from '../../state/room/roomToParents';
 import { useRoomUnread } from '../../state/hooks/unread';
 import { roomToUnreadAtom } from '../../state/room/roomToUnread';
 import {
+  clearRoomReturnAnchor,
   clearRoomScrollState,
+  getRoomReturnAnchor,
   getRoomScrollState,
   saveRoomScrollState,
+  setRoomReturnAnchor,
 } from '../../state/roomScrollCache';
 import { useMentionClickHandler } from '../../hooks/useMentionClickHandler';
 import { useSpoilerClickHandler } from '../../hooks/useSpoilerClickHandler';
@@ -135,6 +137,8 @@ import {
   PAARROT_CAROUSEL_TOTAL_PROPERTY_NAME,
   PAARROT_CAROUSEL_UUID_PROPERTY_NAME,
 } from '../../../types/matrix/common';
+import { EmojiConfettiOverlay } from './emoji-confetti/EmojiConfettiOverlay';
+import { useJumboEmojiConfetti } from './emoji-confetti/useJumboEmojiConfetti';
 
 /** Information about a call member event for grouping */
 interface CallEventInfo {
@@ -580,6 +584,8 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
   );
   const [showHiddenEvents] = useSetting(settingsAtom, 'showHiddenEvents');
   const [showDeveloperTools] = useSetting(settingsAtom, 'developerTools');
+  const { bursts: emojiConfettiBursts, removeBurst: removeEmojiConfettiBurst, handleJumboEmojiClick } =
+    useJumboEmojiConfetti(room);
 
   const [hour24Clock] = useSetting(settingsAtom, 'hour24Clock');
   const [dateFormatString] = useSetting(settingsAtom, 'dateFormatString');
@@ -650,6 +656,18 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     sender: string;
     content: string;
   } | null>(null);
+  const [returnToEventId, setReturnToEventIdState] = useState<string | null>(
+    () => getRoomReturnAnchor(room.roomId) ?? null
+  );
+
+  const setReturnToEventId = useCallback(
+    (eventId: string | null) => {
+      if (eventId) setRoomReturnAnchor(room.roomId, eventId);
+      else clearRoomReturnAnchor(room.roomId);
+      setReturnToEventIdState(eventId);
+    },
+    [room.roomId]
+  );
 
   const scrollRef = useRef<HTMLDivElement>(null);
   const timelineContentRef = useRef<HTMLDivElement>(null);
@@ -661,6 +679,31 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     force: false,
   });
 
+  const getViewportAnchorEventId = useCallback((): string | undefined => {
+    const scrollEl = scrollRef.current;
+    if (!scrollEl) return undefined;
+
+    const scrollRect = scrollEl.getBoundingClientRect();
+    const centerY = scrollRect.top + scrollRect.height / 2;
+    const items = scrollEl.querySelectorAll<HTMLElement>('[data-message-id]');
+
+    let bestId: string | undefined;
+    let bestDist = Infinity;
+
+    items.forEach((el) => {
+      const rect = el.getBoundingClientRect();
+      if (rect.bottom < scrollRect.top || rect.top > scrollRect.bottom) return;
+      const mid = (rect.top + rect.bottom) / 2;
+      const dist = Math.abs(mid - centerY);
+      if (dist < bestDist) {
+        bestDist = dist;
+        bestId = el.getAttribute('data-message-id') ?? undefined;
+      }
+    });
+
+    return bestId;
+  }, []);
+
   const [focusItem, setFocusItem] = useState<
     | {
         index: number;
@@ -709,6 +752,15 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
   const timelineRef = useRef(timeline);
   timelineRef.current = timeline;
 
+  const getRangeCenterEventId = useCallback((): string | undefined => {
+    const { linkedTimelines, range } = timelineRef.current;
+    if (range.end <= range.start) return undefined;
+    const mid = Math.floor((range.start + range.end - 1) / 2);
+    const [tm, baseIndex] = getTimelineAndBaseIndex(linkedTimelines, mid);
+    if (!tm) return undefined;
+    return getTimelineEvent(tm, getTimelineRelativeIndex(mid, baseIndex))?.getId();
+  }, []);
+
   const persistTimelineScroll = useCallback(
     (roomId: string) => {
       if (eventId) return;
@@ -736,6 +788,20 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
   const atLiveEndRef = useRef(liveTimelineLinked && rangeAtEnd);
   atLiveEndRef.current = liveTimelineLinked && rangeAtEnd;
 
+  // Historical / non-live windows are never "at bottom" of the room.
+  // When we return to the live end, re-check scroll — IntersectionObserver may
+  // not re-fire if the anchor stayed intersecting across the transition.
+  useEffect(() => {
+    if (!liveTimelineLinked || !rangeAtEnd) {
+      setAtBottom(false);
+      return;
+    }
+    const scrollEl = scrollRef.current;
+    if (scrollEl && isScrolledToBottom(scrollEl, 100)) {
+      setAtBottom(true);
+    }
+  }, [liveTimelineLinked, rangeAtEnd]);
+
   const handleTimelinePagination = useTimelinePagination(
     mx,
     timeline,
@@ -800,6 +866,7 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
         const isOwnMessage = mEvt.getSender() === mx.getUserId();
         const isBottomPinnedEvent =
           mEvt.getType() === MessageEvent.RoomMessage || mEvt.getType() === MessageEvent.Sticker;
+        const wasAwayFromBottom = !atBottomRef.current;
         const shouldStickToBottom = atBottomRef.current || (isOwnMessage && isBottomPinnedEvent);
 
         // Always update timeline with new message
@@ -820,6 +887,14 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
               requestAnimationFrame(() => markAsRead(roomId, hideActivity));
             }
           }
+          // Sending while scrolled up jumps to latest — offer return to previous spot
+          if (wasAwayFromBottom && isBottomPinnedEvent) {
+            const anchorEventId =
+              eventId ?? getViewportAnchorEventId() ?? getRangeCenterEventId();
+            if (anchorEventId) {
+              setReturnToEventId(anchorEventId);
+            }
+          }
         } else if (!document.hasFocus() && !unreadInfo) {
           // Show unread notification for other users' messages when unfocused
           setUnreadInfo(getRoomUnreadInfo(room));
@@ -846,7 +921,7 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
           });
         }
       },
-      [mx, room, unreadInfo, hideActivity, markAsRead]
+      [mx, room, unreadInfo, hideActivity, markAsRead, eventId, getViewportAnchorEventId, getRangeCenterEventId, setReturnToEventId]
     )
   );
 
@@ -961,30 +1036,32 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     }
   }, [room, hideActivity, markAsRead]);
 
-  const debounceSetAtBottom = useDebounce(
-    useCallback((entry: IntersectionObserverEntry) => {
-      if (!entry.isIntersecting) {
-        setAtBottom(false);
-      }
-    }, []),
-    { wait: 1000 }
-  );
   useIntersectionObserver(
     useCallback(
       (entries) => {
         const target = atBottomAnchorRef.current;
         if (!target) return;
         const targetEntry = getIntersectionObserverEntry(target, entries);
-        if (targetEntry) debounceSetAtBottom(targetEntry);
+        if (!targetEntry) return;
-        if (targetEntry?.isIntersecting && atLiveEndRef.current) {
+
+        // Leave the live bottom immediately so Jump to Latest stays available.
+        // Only intersection clears atBottom here; !atLiveEnd is handled by the
+        // liveTimelineLinked/rangeAtEnd effect so we don't stick false when the
+        // live end reconnects without a new intersection event.
+        if (!targetEntry.isIntersecting) {
+          setAtBottom(false);
+          return;
+        }
+
+        if (!atLiveEndRef.current) return;
+
         setAtBottom(true);
         setLatestUnreadMessage(null);
         if (document.hasFocus()) {
           tryAutoMarkAsRead();
         }
-        }
       },
-      [debounceSetAtBottom, tryAutoMarkAsRead]
+      [tryAutoMarkAsRead]
     ),
     useCallback(
       () => ({
@@ -1048,6 +1125,11 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     }
   }, [eventId, loadEventTimeline]);
 
+  // Restore return-to-previous when switching rooms (survives remount via cache).
+  useEffect(() => {
+    setReturnToEventIdState(getRoomReturnAnchor(room.roomId) ?? null);
+  }, [room.roomId]);
+
   // Scroll to latest when clicking on already-selected room
   useEffect(() => {
     if (scrollToLatest) {
@@ -1079,7 +1161,16 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     const onScroll = () => {
       if (restoringScrollRef.current) return;
       window.cancelAnimationFrame(raf);
-      raf = window.requestAnimationFrame(() => persistTimelineScroll(roomId));
+      raf = window.requestAnimationFrame(() => {
+        persistTimelineScroll(roomId);
+        // Keep Jump to Latest in sync with real scroll position when on the live end.
+        // IntersectionObserver alone can miss transitions and leave atBottom stuck.
+        if (atLiveEndRef.current) {
+          const at = isScrolledToBottom(scrollEl, 100);
+          setAtBottom(at);
+          if (at) setLatestUnreadMessage(null);
+        }
+      });
     };
 
     scrollEl.addEventListener('scroll', onScroll, { passive: true });
@@ -1184,6 +1275,9 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
           scrollToBottomRef.current.smooth,
           scrollToBottomRef.current.force
         );
+        if (atLiveEndRef.current) {
+          setAtBottom(true);
+        }
       }
     }
   }, [scrollToBottomCount]);
@@ -1234,17 +1328,51 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
   }, [room, hour24Clock]);
 
   const handleJumpToLatest = () => {
+    const anchorEventId =
+      eventId ?? getViewportAnchorEventId() ?? getRangeCenterEventId();
+    if (anchorEventId) {
+      setReturnToEventId(anchorEventId);
+    }
+
     if (eventId) {
       navigateRoom(room.roomId, undefined, { replace: true });
     }
     clearRoomScrollState(room.roomId);
     setLatestUnreadMessage(null);
+
+    // Already on the live timeline: only snap the virtual window to the end.
+    // A full getInitialTimeline() rebuild feels like a chat reload when far back.
+    if (!eventId && liveTimelineLinked) {
+      setTimeline((ct) => {
+        const evLength = getTimelinesEventsCount(ct.linkedTimelines);
+        return {
+          linkedTimelines: ct.linkedTimelines,
+          range: {
+            start: Math.max(evLength - PAGINATION_LIMIT, 0),
+            end: evLength,
+          },
+        };
+      });
+    } else {
       setTimeline(getInitialTimeline(room));
+    }
+
     scrollToBottomRef.current.count += 1;
     scrollToBottomRef.current.smooth = false;
     scrollToBottomRef.current.force = true;
   };
 
+  const handleReturnToPrevious = () => {
+    if (!returnToEventId) return;
+    const targetId = returnToEventId;
+    setReturnToEventId(null);
+    handleOpenEvent(targetId);
+  };
+
+  const handleClearReturnToPrevious = () => {
+    setReturnToEventId(null);
+  };
+
   const handleJumpToUnread = () => {
     if (unreadInfo?.readUptoEventId) {
       setTimeline(getEmptyTimeline());
@@ -1473,6 +1601,8 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
                 linkifyOpts={linkifyOpts}
                 outlineAttachment={messageLayout === MessageLayout.Bubble}
                 disabledEmbedPatterns={combinedEmbedFilters}
+                targetEventId={mEventId}
+                onJumboEmojiClick={handleJumboEmojiClick}
               />
             )}
           </Message>
@@ -1581,6 +1711,8 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
                       linkifyOpts={linkifyOpts}
                       outlineAttachment={messageLayout === MessageLayout.Bubble}
                       disabledEmbedPatterns={combinedEmbedFilters}
+                      targetEventId={mEventId}
+                      onJumboEmojiClick={handleJumboEmojiClick}
                     />
                   );
                 }
@@ -1878,6 +2010,7 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
         // Return special marker for call event (will be handled by eventRenderer)
         return 'CALL_EVENT_PENDING' as unknown as React.ReactNode;
       },
+      [MessageEvent.RelayEmojiConfetti]: () => null,
     },
     (mEventId, mEvent, item) => {
       if (!showHiddenEvents) return null;
@@ -2391,31 +2524,12 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
     return callSummaryJSX || eventJSX;
   };
 
+  const showUnreadTop =
+    !!unreadInfo?.readUptoEventId && !unreadInfo?.inLiveTimeline;
+  const atLiveBottom = atBottom && liveTimelineLinked && rangeAtEnd;
+
   return (
     <Box grow="Yes" style={{ position: 'relative' }}>
-      {unreadInfo?.readUptoEventId && !unreadInfo?.inLiveTimeline && (
-        <TimelineFloat position="Top">
-          <Chip
-            variant="Primary"
-            radii="Pill"
-            outlined
-            before={<Icon size="50" src={Icons.MessageUnread} />}
-            onClick={handleJumpToUnread}
-          >
-            <Text size="L400">Jump to Unread</Text>
-          </Chip>
-
-          <Chip
-            variant="SurfaceVariant"
-            radii="Pill"
-            outlined
-            before={<Icon size="50" src={Icons.CheckTwice} />}
-            onClick={handleMarkAsRead}
-          >
-            <Text size="L400">Mark as Read</Text>
-          </Chip>
-        </TimelineFloat>
-      )}
       <Scroll ref={scrollRef} visibility="Hover" data-room-timeline-scroll="">
         <Box
           ref={timelineContentRef}
@@ -2507,10 +2621,65 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
                 </MessageBase>
               </>
             ))}
-          <span ref={atBottomAnchorRef} />
+          {/* 1×1 so IntersectionObserver reliably detects the live bottom */}
+          <span
+            ref={atBottomAnchorRef}
+            aria-hidden
+            style={{ display: 'block', width: 1, height: 1 }}
+          />
         </Box>
       </Scroll>
-      {!atBottom && (
+      {(showUnreadTop || returnToEventId) && (
+        <TimelineFloat position="Top">
+          {returnToEventId && (
+            <>
+              <Chip
+                variant="Primary"
+                radii="Pill"
+                outlined
+                before={<Icon size="50" src={Icons.ArrowTop} />}
+                onClick={handleReturnToPrevious}
+              >
+                <Text size="L400">Return to Previous</Text>
+              </Chip>
+              <IconButton
+                title="Dismiss"
+                aria-label="Dismiss return to previous"
+                size="300"
+                radii="Pill"
+                variant="SurfaceVariant"
+                onClick={handleClearReturnToPrevious}
+              >
+                <Icon size="50" src={Icons.Cross} />
+              </IconButton>
+            </>
+          )}
+          {showUnreadTop && (
+            <>
+              <Chip
+                variant="Primary"
+                radii="Pill"
+                outlined
+                before={<Icon size="50" src={Icons.MessageUnread} />}
+                onClick={handleJumpToUnread}
+              >
+                <Text size="L400">Jump to Unread</Text>
+              </Chip>
+
+              <Chip
+                variant="SurfaceVariant"
+                radii="Pill"
+                outlined
+                before={<Icon size="50" src={Icons.CheckTwice} />}
+                onClick={handleMarkAsRead}
+              >
+                <Text size="L400">Mark as Read</Text>
+              </Chip>
+            </>
+          )}
+        </TimelineFloat>
+      )}
+      {!atLiveBottom && (
         <TimelineFloat position="Bottom">
           <Box direction="Column" gap="200" alignItems="Center">
             {latestUnreadMessage && (
@@ -2544,6 +2713,7 @@ export function RoomTimeline({ room, eventId, roomInputRef, editor }: RoomTimeli
           </Box>
         </TimelineFloat>
       )}
+      <EmojiConfettiOverlay bursts={emojiConfettiBursts} onBurstComplete={removeEmojiConfettiBurst} />
     </Box>
   );
 }

src/app/features/room/RoomViewHeader.tsx

@@ -7,18 +7,16 @@ import { JoinRule, Room } from 'matrix-js-sdk';
 import { useAtom, useAtomValue } from 'jotai';
 import { activeThreadIdAtomFamily } from '../../state/activeThread';
 
-import { useStateEvent } from '../../hooks/useStateEvent';
 import { PageHeader } from '../../components/page';
 import { RoomAvatar, RoomIcon } from '../../components/room-avatar';
 import { UseStateProvider } from '../../components/UseStateProvider';
 import { RoomTopicViewer } from '../../components/room-topic-viewer';
-import { StateEvent } from '../../../types/matrix/room';
 import { useMatrixClient } from '../../hooks/useMatrixClient';
 import { useRoom } from '../../hooks/useRoom';
 import { useSetting } from '../../state/hooks/settings';
 import { settingsAtom } from '../../state/settings';
 import { useSpaceOptionally } from '../../hooks/useSpace';
-import { getHomeSearchPath, getSpaceSearchPath, withSearchParam } from '../../pages/pathUtils';
+import { getHomeSearchPath, getSpaceSearchPath, getDirectSearchPath, withSearchParam } from '../../pages/pathUtils';
 import { getCanonicalAliasOrRoomId, guessDmRoomUserId, isRoomAlias, mxcUrlToHttp } from '../../utils/matrix';
 import colorMXID from '../../../util/colorMXID';
 import { useOtherUserColor } from '../../hooks/useUserColor';
@@ -43,6 +41,7 @@ import { useMediaAuthentication } from '../../hooks/useMediaAuthentication';
 import { useRoomPinnedEvents } from '../../hooks/useRoomPinnedEvents';
 import { RoomPinMenu } from './room-pin-menu';
 import { useOpenRoomSettings } from '../../state/hooks/roomSettings';
+import { isMediaDrawerAtom } from '../../state/mediaDrawer';
 import { RoomNotificationModeSwitcher } from '../../components/RoomNotificationSwitcher';
 import {
   getRoomNotificationMode,
@@ -58,6 +57,8 @@ import { useRoomCall, useRoomCallMembers } from '../call';
 import { CallState, CallType } from '../call/types';
 import { UserAvatar } from '../../components/user-avatar';
 import { getMemberDisplayName, getMemberAvatarMxc } from '../../utils/room';
+import { useDirectSelected } from '../../hooks/router/useDirectSelected';
+import { isStationeryTheme, useTheme } from '../../hooks/useTheme';
 
 type RoomMenuProps = {
   room: Room;
@@ -471,10 +472,11 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
   const [menuAnchor, setMenuAnchor] = useState<RectCords>();
   const [pinMenuAnchor, setPinMenuAnchor] = useState<RectCords>();
   const mDirects = useAtomValue(mDirectAtom);
+  const onDirectPath = useDirectSelected();
+  const theme = useTheme();
+  const stationery = isStationeryTheme(theme);
 
   const pinnedEvents = useRoomPinnedEvents(room);
-  const encryptionEvent = useStateEvent(room, StateEvent.RoomEncryption);
-  const ecryptedRoom = !!encryptionEvent;
   const isDirect = mDirects.has(room.roomId);
   const avatarMxc = useRoomAvatar(room, isDirect);
   const name = useRoomName(room);
@@ -488,11 +490,13 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
     (dmUserId ? room.getMember(dmUserId)?.getMxcAvatarUrl() : undefined) ||
     (isDirect ? avatarMxc : undefined);
   const dmCustomColor = useOtherUserColor(dmUserId ?? '', dmAvatarMxc);
-  const dmFolderTabColor = isDirect
+  const dmFolderTabColor =
+    stationery && isDirect
       ? `color-mix(in srgb, ${dmCustomColor ?? colorMXID(dmUserId ?? room.roomId)} 50%, var(--folder-tab-room, #f3e6c8))`
       : undefined;
 
   const [peopleDrawer, setPeopleDrawer] = useSetting(settingsAtom, 'isPeopleDrawer');
+  const [isMediaDrawer, setMediaDrawer] = useAtom(isMediaDrawerAtom);
   const [activeThreadId, setActiveThreadId] = useAtom(activeThreadIdAtomFamily(room.roomId));
 
   const handleSearchClick = () => {
@@ -501,6 +505,8 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
     };
     const path = space
       ? getSpaceSearchPath(getCanonicalAliasOrRoomId(mx, space.roomId))
+      : isDirect || onDirectPath
+        ? getDirectSearchPath()
         : getHomeSearchPath();
     navigate(withSearchParam(path, searchParams));
   };
@@ -513,6 +519,22 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
     setPinMenuAnchor(evt.currentTarget.getBoundingClientRect());
   };
 
+  const handleTogglePeopleDrawer = () => {
+    setPeopleDrawer((drawer) => {
+      const next = !drawer;
+      if (next) setMediaDrawer(false);
+      return next;
+    });
+  };
+
+  const handleToggleMediaDrawer = () => {
+    setMediaDrawer((open) => {
+      const next = !open;
+      if (next) setPeopleDrawer(false);
+      return next;
+    });
+  };
+
   return (
     <PageHeader balance={showInPageHeader}>
       <Box grow="Yes" gap="300">
@@ -611,7 +633,6 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
         <Box shrink="No" alignItems="Center" gap="100">
           <CallIndicator roomId={room.roomId} />
           <RoomCallButtons roomId={room.roomId} />
-          {!ecryptedRoom && (
           <TooltipProvider
             position="Bottom"
             offset={4}
@@ -627,7 +648,6 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
               </IconButton>
             )}
           </TooltipProvider>
-          )}
           <TooltipProvider
             position="Bottom"
             offset={4}
@@ -695,8 +715,12 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
               }
             >
               {(triggerRef) => (
-                <IconButton ref={triggerRef} onClick={() => setPeopleDrawer((drawer) => !drawer)}>
+                <IconButton
-                  <Icon size="300" src={Icons.User} />
+                  ref={triggerRef}
+                  onClick={handleTogglePeopleDrawer}
+                  aria-pressed={peopleDrawer}
+                >
+                  <Icon size="300" src={Icons.User} filled={peopleDrawer} />
                 </IconButton>
               )}
             </TooltipProvider>
@@ -720,6 +744,26 @@ export function RoomViewHeader({ forumLayout = false }: RoomViewHeaderProps) {
               </IconButton>
             )}
           </TooltipProvider>
+          <TooltipProvider
+            position="Bottom"
+            offset={4}
+            tooltip={
+              <Tooltip>
+                <Text>{isMediaDrawer ? 'Hide Shared Media' : 'Show Shared Media'}</Text>
+              </Tooltip>
+            }
+          >
+            {(triggerRef) => (
+              <IconButton
+                ref={triggerRef}
+                onClick={handleToggleMediaDrawer}
+                aria-pressed={isMediaDrawer}
+                aria-label="Shared Media"
+              >
+                <Icon size="300" src={Icons.Photo} filled={isMediaDrawer} />
+              </IconButton>
+            )}
+          </TooltipProvider>
           <PluginButtonSlot location="room-header" />
           <TooltipProvider
             position="Bottom"

src/app/features/room/ThreadView.tsx

@@ -65,6 +65,8 @@ import * as roomViewCss from './RoomViewFollowing.css';
 import { Message, Reactions, EncryptedContent } from './message';
 import { Reply } from '../../components/message';
 import { RenderMessageContent } from '../../components/RenderMessageContent';
+import { EmojiConfettiOverlay } from './emoji-confetti/EmojiConfettiOverlay';
+import { useJumboEmojiConfetti } from './emoji-confetti/useJumboEmojiConfetti';
 import {
   LINKIFY_OPTS,
   factoryRenderLinkifyWithMention,
@@ -156,6 +158,8 @@ export function ThreadView({ room, threadRootId }: ThreadViewProps) {
   const [hour24Clock] = useSetting(settingsAtom, 'hour24Clock');
   const [dateFormatString] = useSetting(settingsAtom, 'dateFormatString');
   const [hideActivity] = useSetting(settingsAtom, 'hideActivity');
+  const { bursts: emojiConfettiBursts, removeBurst: removeEmojiConfettiBurst, handleJumboEmojiClick } =
+    useJumboEmojiConfetti(room);
 
   const showUrlPreview = room.hasEncryptionStateEvent() ? encUrlPreview : urlPreview;
   const direct = useIsDirectRoom();
@@ -638,6 +642,8 @@ export function ThreadView({ room, threadRootId }: ThreadViewProps) {
                 linkifyOpts={linkifyOpts}
                 outlineAttachment={messageLayout === MessageLayout.Bubble}
                 disabledEmbedPatterns={combinedEmbedFilters}
+                targetEventId={mEventId}
+                onJumboEmojiClick={handleJumboEmojiClick}
               />
             )}
           </EncryptedContent>
@@ -654,6 +660,8 @@ export function ThreadView({ room, threadRootId }: ThreadViewProps) {
             linkifyOpts={linkifyOpts}
             outlineAttachment={messageLayout === MessageLayout.Bubble}
             disabledEmbedPatterns={combinedEmbedFilters}
+            targetEventId={mEventId}
+            onJumboEmojiClick={handleJumboEmojiClick}
           />
         )}
       </Message>
@@ -759,6 +767,10 @@ export function ThreadView({ room, threadRootId }: ThreadViewProps) {
               {events.map((evt, idx, arr) => renderEvent(evt, idx, arr))}
             </Box>
           </Scroll>
+          <EmojiConfettiOverlay
+            bursts={emojiConfettiBursts}
+            onBurstComplete={removeEmojiConfettiBurst}
+          />
         </Box>
         <div className={roomViewCss.RoomViewBottomFloat}>
           <RoomViewTyping room={room} />

src/app/features/room/emoji-confetti/EmojiConfettiBurstCanvas.tsx

@@ -0,0 +1,180 @@
+import React, { useEffect, useMemo, useRef, useState } from 'react';
+import { createPortal } from 'react-dom';
+import { EmojiConfettiBurst } from './types';
+import { findJumboEmojiElement, getLocalBurstCanvasSize } from './findJumboMount';
+import {
+  BurstParticle,
+  drawBurstParticles,
+  spawnEmojiBurst,
+  stepBurstParticles,
+} from './emojiBurstEngine';
+
+const MAX_DPR = 2;
+
+type EmojiConfettiBurstCanvasProps = {
+  burst: EmojiConfettiBurst;
+  onComplete: (burstId: string) => void;
+};
+
+export function EmojiConfettiBurstCanvas({ burst, onComplete }: EmojiConfettiBurstCanvasProps) {
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const layerRef = useRef<HTMLDivElement>(null);
+  const particlesRef = useRef<BurstParticle[]>([]);
+  const frameRef = useRef<number | null>(null);
+  const lastFrameTimeRef = useRef<number | null>(null);
+  const spawnedRef = useRef(false);
+  const onCompleteRef = useRef(onComplete);
+  onCompleteRef.current = onComplete;
+
+  const canvasSize = getLocalBurstCanvasSize(burst.origin.maskRadius ?? 36);
+  const localOrigin = useMemo(
+    () => ({
+      x: canvasSize / 2,
+      y: canvasSize / 2,
+      maskRadius: burst.origin.maskRadius ?? 36,
+    }),
+    [burst.origin.maskRadius, canvasSize]
+  );
+
+  const updateLayerPosition = () => {
+    const layer = layerRef.current;
+    if (!layer) return false;
+
+    const jumbo = findJumboEmojiElement(burst.targetEventId);
+    if (!jumbo) return false;
+
+    const rect = jumbo.getBoundingClientRect();
+    layer.style.left = `${rect.left + rect.width / 2 - canvasSize / 2}px`;
+    layer.style.top = `${rect.top + rect.height / 2 - canvasSize / 2}px`;
+    return true;
+  };
+
+  useEffect(() => {
+    const onScrollOrResize = () => {
+      updateLayerPosition();
+    };
+
+    window.addEventListener('scroll', onScrollOrResize, true);
+    window.addEventListener('resize', onScrollOrResize);
+
+    return () => {
+      window.removeEventListener('scroll', onScrollOrResize, true);
+      window.removeEventListener('resize', onScrollOrResize);
+    };
+  }, [burst.targetEventId, canvasSize]);
+
+  useEffect(() => {
+    if (!canvasRef.current || spawnedRef.current) return undefined;
+
+    const reducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
+    if (reducedMotion) {
+      onCompleteRef.current(burst.id);
+      return undefined;
+    }
+
+    let frameCleanup: (() => void) | undefined;
+
+    const start = (): boolean => {
+      if (spawnedRef.current || !canvasRef.current) return false;
+      if (!updateLayerPosition()) return false;
+
+      spawnedRef.current = true;
+      const canvas = canvasRef.current;
+      const context = canvas.getContext('2d');
+      if (!context) return false;
+
+      const dpr = Math.min(window.devicePixelRatio || 1, MAX_DPR);
+      canvas.width = Math.round(canvasSize * dpr);
+      canvas.height = Math.round(canvasSize * dpr);
+      canvas.style.width = `${canvasSize}px`;
+      canvas.style.height = `${canvasSize}px`;
+
+      spawnEmojiBurst(
+        particlesRef.current,
+        burst.id,
+        localOrigin,
+        burst.emojis[0] ?? '🎉',
+        performance.now()
+      );
+
+      const tick = (now: number) => {
+        updateLayerPosition();
+
+        const last = lastFrameTimeRef.current ?? now;
+        const dtSeconds = Math.min((now - last) / 1000, 0.05);
+        lastFrameTimeRef.current = now;
+
+        stepBurstParticles(particlesRef.current, now, dtSeconds);
+
+        context.setTransform(1, 0, 0, 1, 0, 0);
+        context.clearRect(0, 0, canvas.width, canvas.height);
+
+        if (particlesRef.current.length > 0) {
+          drawBurstParticles(context, particlesRef.current, dpr, now);
+          frameRef.current = requestAnimationFrame(tick);
+          return;
+        }
+
+        onCompleteRef.current(burst.id);
+        frameRef.current = null;
+        lastFrameTimeRef.current = null;
+      };
+
+      lastFrameTimeRef.current = performance.now();
+      frameRef.current = requestAnimationFrame(tick);
+
+      frameCleanup = () => {
+        if (frameRef.current !== null) {
+          cancelAnimationFrame(frameRef.current);
+          frameRef.current = null;
+        }
+      };
+
+      return true;
+    };
+
+    if (start()) {
+      return frameCleanup;
+    }
+
+    let attempt = 0;
+    const retry = window.setInterval(() => {
+      attempt += 1;
+      if (start() || attempt >= 10) {
+        window.clearInterval(retry);
+        if (attempt >= 10 && !spawnedRef.current) {
+          onCompleteRef.current(burst.id);
+        }
+      }
+    }, 50);
+
+    return () => {
+      window.clearInterval(retry);
+      frameCleanup?.();
+    };
+  }, [burst.emojis, burst.id, burst.targetEventId, canvasSize, localOrigin]);
+
+  return createPortal(
+    <div
+      ref={layerRef}
+      aria-hidden
+      style={{
+        position: 'fixed',
+        width: canvasSize,
+        height: canvasSize,
+        pointerEvents: 'none',
+        zIndex: 4,
+      }}
+    >
+      <canvas
+        ref={canvasRef}
+        style={{
+          position: 'absolute',
+          inset: 0,
+          pointerEvents: 'none',
+        }}
+      />
+    </div>,
+    document.body
+  );
+}

src/app/features/room/emoji-confetti/EmojiConfettiOverlay.tsx

@@ -0,0 +1,24 @@
+import React from 'react';
+import { EmojiConfettiBurst } from './types';
+import { EmojiConfettiBurstCanvas } from './EmojiConfettiBurstCanvas';
+
+type EmojiConfettiOverlayProps = {
+  bursts: EmojiConfettiBurst[];
+  onBurstComplete: (burstId: string) => void;
+};
+
+export function EmojiConfettiOverlay({ bursts, onBurstComplete }: EmojiConfettiOverlayProps) {
+  if (bursts.length === 0) return null;
+
+  return (
+    <>
+      {bursts.map((burst) => (
+        <EmojiConfettiBurstCanvas
+          key={burst.id}
+          burst={burst}
+          onComplete={onBurstComplete}
+        />
+      ))}
+    </>
+  );
+}

src/app/features/room/emoji-confetti/burstOrigin.ts

@@ -0,0 +1,74 @@
+export type BurstPoint = {
+  x: number;
+  y: number;
+  maskRadius?: number;
+};
+
+export function getBurstPointFromElement(element: Element): BurstPoint {
+  const rect = element.getBoundingClientRect();
+  return {
+    x: rect.left + rect.width / 2,
+    y: rect.top + rect.height / 2,
+    maskRadius: Math.max(rect.width, rect.height) * 0.5,
+  };
+}
+
+export function getElementCenter(element: Element): BurstPoint {
+  return getBurstPointFromElement(element);
+}
+
+export function findEmojiOriginInMessage(
+  targetEventId: string,
+  emoji: string
+): BurstPoint | undefined {
+  const message = document.querySelector(`[data-message-id="${CSS.escape(targetEventId)}"]`);
+  if (!message) return undefined;
+
+  const matches = message.querySelectorAll('[data-emoticon]');
+  for (const element of matches) {
+    if (element.getAttribute('data-emoticon') === emoji) {
+      return getBurstPointFromElement(element);
+    }
+  }
+
+  return undefined;
+}
+
+export function getMessageFallbackOrigin(targetEventId: string): BurstPoint | undefined {
+  const message = document.querySelector(`[data-message-id="${CSS.escape(targetEventId)}"]`);
+  if (!message) return undefined;
+
+  const jumboBody = message.querySelector('[data-jumbo-emoji]');
+  if (jumboBody) {
+    return getBurstPointFromElement(jumboBody);
+  }
+
+  const body = message.querySelector('[data-message-body]');
+  if (body) {
+    return getBurstPointFromElement(body);
+  }
+
+  return getBurstPointFromElement(message);
+}
+
+export function resolveBurstOrigin(
+  targetEventId: string | undefined,
+  emojis: string[],
+  explicitOrigin?: BurstPoint
+): BurstPoint {
+  if (explicitOrigin) return explicitOrigin;
+
+  const primaryEmoji = emojis[0];
+  if (targetEventId && primaryEmoji) {
+    const emojiOrigin = findEmojiOriginInMessage(targetEventId, primaryEmoji);
+    if (emojiOrigin) return emojiOrigin;
+
+    const messageOrigin = getMessageFallbackOrigin(targetEventId);
+    if (messageOrigin) return messageOrigin;
+  }
+
+  return {
+    x: window.innerWidth / 2,
+    y: window.innerHeight * 0.35,
+  };
+}

src/app/features/room/emoji-confetti/emojiBurstEngine.ts

@@ -0,0 +1,357 @@
+import { BurstPoint } from './burstOrigin';
+import {
+  BurstMotionStyle,
+  EmojiBurstProfile,
+  getEmojiBurstProfile,
+  pickParticleEmoji,
+  sampleBurstAngle,
+} from './emojiParticleProfiles';
+
+/** Particles spawn over this window. */
+export const BURST_SPAWN_MS = 500;
+/** Global fade runs from 0.5s → 2s after burst start. */
+export const BURST_FADE_START_MS = 500;
+export const BURST_FADE_END_MS = 2000;
+export const BURST_TOTAL_MS = BURST_FADE_END_MS;
+
+export type BurstParticle = {
+  burstId: string;
+  burstStartMs: number;
+  emoji: string;
+  fontSize: number;
+  spawnX: number;
+  spawnY: number;
+  maskRadius: number;
+  x: number;
+  y: number;
+  vx: number;
+  vy: number;
+  bornAt: number;
+  rotation: number;
+  spin: number;
+  peakScale: number;
+  style: BurstMotionStyle;
+  gravity: number;
+  drag: number;
+  phase: number;
+  twinkle?: boolean;
+  wobble?: boolean;
+  orbitRadius: number;
+  orbitSpeed: number;
+  orbitAngle: number;
+  bounceDamping: number;
+  bouncesLeft: number;
+};
+
+const EMOJI_CACHE_PX = 64;
+const EMOJI_CACHE_SCALE = 2;
+const MAX_DPR = 2;
+const POP_IN_MS = 70;
+
+const emojiCanvasCache = new Map<string, HTMLCanvasElement>();
+
+function easeOutBack(t: number): number {
+  const c1 = 1.70158;
+  const c3 = c1 + 1;
+  return 1 + c3 * (t - 1) ** 3 + c1 * (t - 1) ** 2;
+}
+
+function easeOutCubic(t: number): number {
+  return 1 - (1 - t) ** 3;
+}
+
+function lerp(min: number, max: number): number {
+  return min + Math.random() * (max - min);
+}
+
+function getEmojiCanvas(emoji: string): HTMLCanvasElement {
+  const dpr = Math.min(window.devicePixelRatio || 1, MAX_DPR);
+  const cacheKey = `${emoji}:${dpr}`;
+  const cached = emojiCanvasCache.get(cacheKey);
+  if (cached) return cached;
+
+  const fontSize = Math.ceil(EMOJI_CACHE_PX * dpr);
+  const size = Math.ceil(fontSize * EMOJI_CACHE_SCALE);
+  const canvas = document.createElement('canvas');
+  canvas.width = size;
+  canvas.height = size;
+
+  const context = canvas.getContext('2d');
+  if (context) {
+    context.textAlign = 'center';
+    context.textBaseline = 'middle';
+    context.font = `${fontSize}px "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif`;
+    context.fillText(emoji, size / 2, size / 2);
+  }
+
+  emojiCanvasCache.set(cacheKey, canvas);
+  return canvas;
+}
+
+function emergeOpacity(
+  x: number,
+  y: number,
+  spawnX: number,
+  spawnY: number,
+  maskRadius: number
+): number {
+  const dist = Math.hypot(x - spawnX, y - spawnY);
+  const inner = maskRadius * 0.55;
+  const outer = maskRadius * 1.05;
+  if (dist <= inner) return 0;
+  if (dist >= outer) return 1;
+  return (dist - inner) / (outer - inner);
+}
+
+function spawnParticle(
+  particles: BurstParticle[],
+  burstId: string,
+  burstStartMs: number,
+  point: BurstPoint,
+  primaryEmoji: string,
+  profile: EmojiBurstProfile,
+  bornAt: number,
+  options?: { hero?: boolean }
+) {
+  const hero = options?.hero ?? false;
+  const angle = sampleBurstAngle(profile);
+  const speed = hero
+    ? lerp(profile.speedMin * 0.65, profile.speedMax * 0.55)
+    : lerp(profile.speedMin, profile.speedMax);
+  const launchUp = lerp(profile.launchUpMin, profile.launchUpMax);
+  const maskRadius = point.maskRadius ?? 28;
+  const jitter = hero ? 3 : 12;
+  const emoji = pickParticleEmoji(profile, primaryEmoji);
+
+  let vx = Math.cos(angle) * speed + (Math.random() - 0.5) * 60;
+  let vy = Math.sin(angle) * speed - launchUp;
+
+  if (profile.style === 'spiral') {
+    vx *= 0.35;
+    vy *= 0.35;
+  }
+
+  if (profile.style === 'sparkle') {
+    vx *= 0.75;
+    vy *= 0.75;
+  }
+
+  particles.push({
+    burstId,
+    burstStartMs,
+    emoji,
+    fontSize: hero
+      ? lerp(profile.heroFontSizeMin, profile.heroFontSizeMax)
+      : lerp(profile.fontSizeMin, profile.fontSizeMax),
+    spawnX: point.x,
+    spawnY: point.y,
+    maskRadius,
+    x: point.x + (Math.random() - 0.5) * jitter,
+    y: point.y + (Math.random() - 0.5) * jitter,
+    vx,
+    vy,
+    bornAt,
+    rotation: (Math.random() - 0.5) * 40,
+    spin: lerp(profile.spinMin, profile.spinMax),
+    peakScale: hero ? 1.1 + Math.random() * 0.2 : 0.9 + Math.random() * 0.4,
+    style: profile.style,
+    gravity: profile.gravity,
+    drag: profile.drag,
+    phase: Math.random() * Math.PI * 2,
+    twinkle: profile.twinkle,
+    wobble: profile.wobble,
+    orbitRadius: hero ? 8 : 14 + Math.random() * 28,
+    orbitSpeed: (Math.random() < 0.5 ? -1 : 1) * (1.8 + Math.random() * 2.4),
+    orbitAngle: Math.random() * Math.PI * 2,
+    bounceDamping: 0.42 + Math.random() * 0.18,
+    bouncesLeft: profile.style === 'bounce' ? 2 : 0,
+  });
+}
+
+/** Fountain from behind the emoji for 0.5s, fade 0.5s→2s. */
+export function spawnEmojiBurst(
+  particles: BurstParticle[],
+  burstId: string,
+  point: BurstPoint,
+  emoji: string,
+  now = performance.now()
+) {
+  const profile = getEmojiBurstProfile(emoji);
+  const burstStartMs = now;
+
+  spawnParticle(particles, burstId, burstStartMs, point, emoji, profile, burstStartMs, {
+    hero: true,
+  });
+
+  const particleCount = profile.particleCount;
+  for (let i = 0; i < particleCount; i += 1) {
+    const slot = i / particleCount;
+    const bornAt =
+      burstStartMs + slot * BURST_SPAWN_MS + Math.random() * (BURST_SPAWN_MS / particleCount);
+    spawnParticle(particles, burstId, burstStartMs, point, emoji, profile, bornAt);
+  }
+}
+
+function stepSpiralParticle(particle: BurstParticle, dtSeconds: number) {
+  particle.orbitRadius += 42 * dtSeconds;
+  particle.orbitAngle += particle.orbitSpeed * dtSeconds;
+  particle.x = particle.spawnX + Math.cos(particle.orbitAngle) * particle.orbitRadius;
+  particle.y =
+    particle.spawnY + Math.sin(particle.orbitAngle) * particle.orbitRadius * 0.65 + particle.vy * dtSeconds * 8;
+  particle.vy += particle.gravity * dtSeconds * 0.35;
+  particle.rotation += particle.spin * dtSeconds;
+}
+
+function stepBounceParticle(particle: BurstParticle, dtSeconds: number, dragFactor: number) {
+  particle.vy += particle.gravity * dtSeconds;
+  particle.vx *= dragFactor;
+  particle.vy *= dragFactor;
+  particle.x += particle.vx * dtSeconds;
+  particle.y += particle.vy * dtSeconds;
+  particle.rotation += particle.spin * dtSeconds;
+
+  if (particle.bouncesLeft > 0 && particle.vy > 0 && particle.y >= particle.spawnY + 6) {
+    particle.y = particle.spawnY + 6;
+    particle.vy = -Math.abs(particle.vy) * particle.bounceDamping;
+    particle.vx *= 0.82;
+    particle.bouncesLeft -= 1;
+    particle.spin += (Math.random() - 0.5) * 120;
+  }
+}
+
+function stepDefaultParticle(particle: BurstParticle, dtSeconds: number, dragFactor: number) {
+  particle.vy += particle.gravity * dtSeconds;
+  particle.vx *= dragFactor;
+  particle.vy *= dragFactor;
+  particle.x += particle.vx * dtSeconds;
+  particle.y += particle.vy * dtSeconds;
+  particle.rotation += particle.spin * dtSeconds;
+}
+
+export function stepBurstParticles(
+  particles: BurstParticle[],
+  now: number,
+  dtSeconds: number
+): void {
+  for (let i = particles.length - 1; i >= 0; i -= 1) {
+    const particle = particles[i];
+    const burstElapsed = now - particle.burstStartMs;
+
+    if (burstElapsed > BURST_TOTAL_MS) {
+      particles[i] = particles[particles.length - 1];
+      particles.pop();
+      continue;
+    }
+
+    const ageMs = now - particle.bornAt;
+    if (ageMs < 0) continue;
+
+    const dragFactor = particle.drag ** (dtSeconds * 60);
+
+    switch (particle.style) {
+      case 'spiral':
+        stepSpiralParticle(particle, dtSeconds);
+        break;
+      case 'bounce':
+        stepBounceParticle(particle, dtSeconds, dragFactor);
+        break;
+      default:
+        stepDefaultParticle(particle, dtSeconds, dragFactor);
+        break;
+    }
+
+    particle.phase += dtSeconds * (particle.twinkle ? 9 : 5);
+  }
+}
+
+type DrawState = {
+  x: number;
+  y: number;
+  scale: number;
+  opacity: number;
+  rotation: number;
+};
+
+function particleDrawState(particle: BurstParticle, now: number): DrawState | null {
+  const burstElapsed = now - particle.burstStartMs;
+  if (burstElapsed > BURST_TOTAL_MS) return null;
+
+  const ageMs = now - particle.bornAt;
+  if (ageMs < 0) return null;
+
+  let scale = particle.peakScale;
+  let opacity = emergeOpacity(
+    particle.x,
+    particle.y,
+    particle.spawnX,
+    particle.spawnY,
+    particle.maskRadius
+  );
+
+  if (opacity <= 0) return null;
+
+  if (ageMs < POP_IN_MS) {
+    const pop = easeOutBack(ageMs / POP_IN_MS);
+    scale = 0.1 + pop * particle.peakScale;
+    opacity *= pop;
+  }
+
+  if (particle.twinkle) {
+    opacity *= 0.55 + 0.45 * Math.sin(particle.phase * 1.6);
+  }
+
+  if (particle.wobble) {
+    scale *= 1 + 0.12 * Math.sin(particle.phase * 2.2);
+  }
+
+  if (particle.style === 'sparkle' && burstElapsed < BURST_FADE_START_MS) {
+    scale *= 0.85 + 0.3 * Math.sin(particle.phase * 3);
+  }
+
+  if (burstElapsed >= BURST_FADE_START_MS) {
+    const fadeT = (burstElapsed - BURST_FADE_START_MS) / (BURST_FADE_END_MS - BURST_FADE_START_MS);
+    opacity *= 1 - easeOutCubic(Math.min(1, fadeT));
+    scale *= 1 - easeOutCubic(Math.min(1, fadeT)) * 0.2;
+  }
+
+  if (opacity <= 0.02) return null;
+
+  return {
+    x: particle.x,
+    y: particle.y,
+    scale,
+    opacity,
+    rotation: particle.rotation,
+  };
+}
+
+export function drawBurstParticles(
+  context: CanvasRenderingContext2D,
+  particles: BurstParticle[],
+  dpr: number,
+  now: number
+) {
+  for (const particle of particles) {
+    const state = particleDrawState(particle, now);
+    if (!state) continue;
+
+    context.globalAlpha = state.opacity;
+
+    const emojiCanvas = getEmojiCanvas(particle.emoji);
+    const drawSize = particle.fontSize * state.scale * EMOJI_CACHE_SCALE;
+    const halfSize = drawSize / 2;
+    const radians = (state.rotation * Math.PI) / 180;
+    const cos = Math.cos(radians) * dpr;
+    const sin = Math.sin(radians) * dpr;
+
+    context.setTransform(cos, sin, -sin, cos, state.x * dpr, state.y * dpr);
+    context.drawImage(emojiCanvas, -halfSize, -halfSize, drawSize, drawSize);
+  }
+
+  context.globalAlpha = 1;
+  context.setTransform(dpr, 0, 0, dpr, 0, 0);
+}
+
+export function hasBurstParticles(particles: BurstParticle[], burstId: string): boolean {
+  return particles.some((particle) => particle.burstId === burstId);
+}

src/app/features/room/emoji-confetti/emojiParticleProfiles.ts

@@ -0,0 +1,391 @@
+export type BurstMotionStyle =
+  | 'explode'
+  | 'bounce'
+  | 'rise'
+  | 'sparkle'
+  | 'splash'
+  | 'spiral'
+  | 'punch'
+  | 'scatter'
+  | 'shower';
+
+export type EmojiBurstProfile = {
+  style: BurstMotionStyle;
+  particleCount: number;
+  gravity: number;
+  drag: number;
+  speedMin: number;
+  speedMax: number;
+  launchUpMin: number;
+  launchUpMax: number;
+  spinMin: number;
+  spinMax: number;
+  fontSizeMin: number;
+  fontSizeMax: number;
+  heroFontSizeMin: number;
+  heroFontSizeMax: number;
+  companions?: string[];
+  companionChance?: number;
+  /** Bias burst angle in radians. 0 = right, -π/2 = up. */
+  angleBias?: number;
+  /** Limit spawn to a cone (radians). Omit for full 360°. */
+  angleSpread?: number;
+  twinkle?: boolean;
+  wobble?: boolean;
+};
+
+const DEFAULT_PROFILE: EmojiBurstProfile = {
+  style: 'explode',
+  particleCount: 36,
+  gravity: 400,
+  drag: 0.935,
+  speedMin: 240,
+  speedMax: 560,
+  launchUpMin: 40,
+  launchUpMax: 130,
+  spinMin: -180,
+  spinMax: 180,
+  fontSizeMin: 14,
+  fontSizeMax: 26,
+  heroFontSizeMin: 26,
+  heroFontSizeMax: 34,
+};
+
+const PROFILE_OVERRIDES: Record<string, Partial<EmojiBurstProfile>> = {
+  '😆': {
+    style: 'bounce',
+    particleCount: 28,
+    gravity: 520,
+    speedMin: 180,
+    speedMax: 360,
+    launchUpMin: 120,
+    launchUpMax: 220,
+    spinMin: -240,
+    spinMax: 240,
+    wobble: true,
+  },
+  '😂': {
+    style: 'bounce',
+    particleCount: 30,
+    gravity: 500,
+    speedMin: 160,
+    speedMax: 340,
+    launchUpMin: 110,
+    launchUpMax: 210,
+    spinMin: -220,
+    spinMax: 220,
+    wobble: true,
+  },
+  '🤣': {
+    style: 'bounce',
+    particleCount: 32,
+    gravity: 480,
+    speedMin: 200,
+    speedMax: 380,
+    launchUpMin: 130,
+    launchUpMax: 240,
+    wobble: true,
+  },
+  '🔥': {
+    style: 'rise',
+    particleCount: 24,
+    gravity: -120,
+    drag: 0.96,
+    speedMin: 80,
+    speedMax: 200,
+    launchUpMin: 60,
+    launchUpMax: 160,
+    spinMin: -90,
+    spinMax: 90,
+    fontSizeMin: 16,
+    fontSizeMax: 28,
+    twinkle: true,
+    wobble: true,
+    companions: ['✨'],
+    companionChance: 0.35,
+  },
+  '❤️': {
+    style: 'rise',
+    particleCount: 22,
+    gravity: -80,
+    drag: 0.97,
+    speedMin: 60,
+    speedMax: 150,
+    launchUpMin: 40,
+    launchUpMax: 110,
+    spinMin: -40,
+    spinMax: 40,
+    fontSizeMin: 14,
+    fontSizeMax: 24,
+    companions: ['💕', '💖'],
+    companionChance: 0.4,
+  },
+  '💕': {
+    style: 'rise',
+    particleCount: 20,
+    gravity: -70,
+    drag: 0.97,
+    speedMin: 50,
+    speedMax: 140,
+    launchUpMin: 35,
+    launchUpMax: 100,
+    spinMin: -35,
+    spinMax: 35,
+  },
+  '💖': {
+    style: 'rise',
+    particleCount: 20,
+    gravity: -90,
+    drag: 0.968,
+    speedMin: 55,
+    speedMax: 150,
+    launchUpMin: 45,
+    launchUpMax: 115,
+    twinkle: true,
+  },
+  '⭐': {
+    style: 'sparkle',
+    particleCount: 26,
+    gravity: 40,
+    drag: 0.94,
+    speedMin: 100,
+    speedMax: 260,
+    launchUpMin: 20,
+    launchUpMax: 80,
+    spinMin: -120,
+    spinMax: 120,
+    twinkle: true,
+    companions: ['✨'],
+    companionChance: 0.5,
+  },
+  '✨': {
+    style: 'sparkle',
+    particleCount: 30,
+    gravity: 30,
+    drag: 0.945,
+    speedMin: 90,
+    speedMax: 240,
+    launchUpMin: 15,
+    launchUpMax: 70,
+    spinMin: -200,
+    spinMax: 200,
+    twinkle: true,
+  },
+  '💀': {
+    style: 'scatter',
+    particleCount: 20,
+    gravity: 620,
+    drag: 0.92,
+    speedMin: 200,
+    speedMax: 420,
+    launchUpMin: 20,
+    launchUpMax: 90,
+    spinMin: -360,
+    spinMax: 360,
+    fontSizeMin: 16,
+    fontSizeMax: 28,
+  },
+  '🎉': {
+    style: 'shower',
+    particleCount: 40,
+    gravity: 280,
+    drag: 0.93,
+    speedMin: 200,
+    speedMax: 480,
+    launchUpMin: 80,
+    launchUpMax: 200,
+    companions: ['🎊', '✨', '🎈'],
+    companionChance: 0.45,
+  },
+  '🎊': {
+    style: 'shower',
+    particleCount: 38,
+    gravity: 260,
+    drag: 0.932,
+    speedMin: 190,
+    speedMax: 460,
+    launchUpMin: 70,
+    launchUpMax: 190,
+    companions: ['🎉', '✨'],
+    companionChance: 0.4,
+  },
+  '👏': {
+    style: 'punch',
+    particleCount: 18,
+    gravity: 320,
+    speedMin: 220,
+    speedMax: 400,
+    launchUpMin: 30,
+    launchUpMax: 100,
+    angleBias: -Math.PI / 2,
+    angleSpread: Math.PI * 0.85,
+    spinMin: -100,
+    spinMax: 100,
+  },
+  '👍': {
+    style: 'punch',
+    particleCount: 14,
+    gravity: 380,
+    speedMin: 260,
+    speedMax: 440,
+    launchUpMin: 100,
+    launchUpMax: 200,
+    angleBias: -Math.PI / 2,
+    angleSpread: Math.PI * 0.55,
+    spinMin: -60,
+    spinMax: 60,
+  },
+  '💯': {
+    style: 'punch',
+    particleCount: 16,
+    gravity: 300,
+    speedMin: 200,
+    speedMax: 380,
+    launchUpMin: 140,
+    launchUpMax: 240,
+    angleBias: -Math.PI / 2,
+    angleSpread: Math.PI * 0.45,
+    fontSizeMin: 16,
+    fontSizeMax: 30,
+    wobble: true,
+  },
+  '💦': {
+    style: 'splash',
+    particleCount: 32,
+    gravity: 540,
+    drag: 0.925,
+    speedMin: 280,
+    speedMax: 520,
+    launchUpMin: 160,
+    launchUpMax: 300,
+    spinMin: -140,
+    spinMax: 140,
+    angleBias: -Math.PI / 2,
+    angleSpread: Math.PI * 1.1,
+  },
+  '🌊': {
+    style: 'splash',
+    particleCount: 28,
+    gravity: 420,
+    drag: 0.93,
+    speedMin: 220,
+    speedMax: 460,
+    launchUpMin: 100,
+    launchUpMax: 220,
+    angleBias: -Math.PI / 2,
+    angleSpread: Math.PI,
+    companions: ['💧'],
+    companionChance: 0.3,
+  },
+  '⚡': {
+    style: 'scatter',
+    particleCount: 14,
+    gravity: 180,
+    drag: 0.88,
+    speedMin: 380,
+    speedMax: 680,
+    launchUpMin: 10,
+    launchUpMax: 60,
+    spinMin: -30,
+    spinMax: 30,
+    fontSizeMin: 18,
+    fontSizeMax: 32,
+    angleSpread: Math.PI * 1.2,
+  },
+  '🌀': {
+    style: 'spiral',
+    particleCount: 24,
+    gravity: 60,
+    drag: 0.96,
+    speedMin: 120,
+    speedMax: 260,
+    launchUpMin: 0,
+    launchUpMax: 40,
+    spinMin: -420,
+    spinMax: 420,
+  },
+  '🤯': {
+    style: 'explode',
+    particleCount: 34,
+    gravity: 360,
+    speedMin: 280,
+    speedMax: 580,
+    launchUpMin: 60,
+    launchUpMax: 160,
+    companions: ['💥', '✨', '⭐'],
+    companionChance: 0.5,
+  },
+  '😭': {
+    style: 'splash',
+    particleCount: 26,
+    gravity: 480,
+    drag: 0.94,
+    speedMin: 140,
+    speedMax: 300,
+    launchUpMin: 40,
+    launchUpMax: 120,
+    angleBias: Math.PI / 2,
+    angleSpread: Math.PI * 0.7,
+    companions: ['💧'],
+    companionChance: 0.55,
+  },
+  '🥳': {
+    style: 'shower',
+    particleCount: 36,
+    gravity: 250,
+    speedMin: 180,
+    speedMax: 440,
+    launchUpMin: 90,
+    launchUpMax: 210,
+    companions: ['🎉', '🎊', '🎈'],
+    companionChance: 0.4,
+  },
+  '🐱': {
+    style: 'bounce',
+    particleCount: 20,
+    gravity: 440,
+    speedMin: 150,
+    speedMax: 320,
+    launchUpMin: 90,
+    launchUpMax: 180,
+    spinMin: -160,
+    spinMax: 160,
+  },
+  '🐶': {
+    style: 'bounce',
+    particleCount: 20,
+    gravity: 460,
+    speedMin: 160,
+    speedMax: 330,
+    launchUpMin: 85,
+    launchUpMax: 175,
+    wobble: true,
+  },
+};
+
+export function getEmojiBurstProfile(emoji: string): EmojiBurstProfile {
+  const override = PROFILE_OVERRIDES[emoji];
+  if (!override) return DEFAULT_PROFILE;
+  return { ...DEFAULT_PROFILE, ...override };
+}
+
+export function pickParticleEmoji(profile: EmojiBurstProfile, primaryEmoji: string): string {
+  if (!profile.companions?.length || !profile.companionChance) {
+    return primaryEmoji;
+  }
+  if (Math.random() >= profile.companionChance) {
+    return primaryEmoji;
+  }
+  const companion = profile.companions[Math.floor(Math.random() * profile.companions.length)];
+  return companion ?? primaryEmoji;
+}
+
+export function sampleBurstAngle(profile: EmojiBurstProfile): number {
+  if (profile.angleSpread === undefined) {
+    return Math.random() * Math.PI * 2;
+  }
+
+  const bias = profile.angleBias ?? -Math.PI / 2;
+  const halfSpread = profile.angleSpread / 2;
+  return bias + (Math.random() - 0.5) * profile.angleSpread * (0.6 + Math.random() * 0.4);
+}

src/app/features/room/emoji-confetti/findJumboMount.ts

@@ -0,0 +1,11 @@
+export function findJumboEmojiElement(targetEventId: string): HTMLElement | null {
+  const message = document.querySelector(`[data-message-id="${CSS.escape(targetEventId)}"]`);
+  if (!message) return null;
+
+  const jumbo = message.querySelector('[data-jumbo-emoji]');
+  return jumbo instanceof HTMLElement ? jumbo : null;
+}
+
+export function getLocalBurstCanvasSize(maskRadius: number): number {
+  return Math.max(300, Math.round(maskRadius * 6.5));
+}

src/app/features/room/emoji-confetti/jumboEmojiInteraction.ts

@@ -0,0 +1,34 @@
+import { KeyboardEvent, MouseEvent } from 'react';
+
+export type JumboEmojiClickHandler = (body: string, event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>) => void;
+
+export function getJumboEmojiInteractionProps({
+  body,
+  isJumboEmoji,
+  onJumboEmojiClick,
+}: {
+  body: string;
+  isJumboEmoji: boolean;
+  onJumboEmojiClick?: JumboEmojiClickHandler;
+}) {
+  if (!isJumboEmoji || !onJumboEmojiClick) {
+    return {};
+  }
+
+  const activate = (event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>) => {
+    if ('key' in event) {
+      if (event.key !== 'Enter' && event.key !== ' ') return;
+      event.preventDefault();
+    }
+    event.stopPropagation();
+    onJumboEmojiClick(body, event);
+  };
+
+  return {
+    role: 'button' as const,
+    tabIndex: 0,
+    title: 'Throw emoji confetti',
+    onClick: activate,
+    onKeyDown: activate,
+  };
+}

src/app/features/room/emoji-confetti/resolveClickedEmoji.ts

@@ -0,0 +1,54 @@
+import { KeyboardEvent, MouseEvent } from 'react';
+import { extractJumboEmojis } from './sendEmojiConfetti';
+import { BurstPoint, getBurstPointFromElement } from './burstOrigin';
+
+export function resolveClickedEmoji(
+  event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>,
+  fallbackBody: string
+): { emoji: string; origin: BurstPoint } | null {
+  const currentTarget = event.currentTarget as HTMLElement;
+  const target = event.target as HTMLElement;
+  const emoticonEl = target.closest('[data-emoticon]') ?? currentTarget.querySelector('[data-emoticon]');
+  if (emoticonEl instanceof HTMLElement) {
+    const emoji = emoticonEl.getAttribute('data-emoticon');
+    if (emoji) {
+      return {
+        emoji,
+        origin: getBurstPointFromElement(emoticonEl),
+      };
+    }
+  }
+
+  if (!currentTarget.closest('[data-jumbo-emoji]') && !currentTarget.hasAttribute('data-jumbo-emoji')) {
+    return null;
+  }
+
+  const emojis = extractJumboEmojis(fallbackBody);
+  if (emojis.length === 0) return null;
+
+  if ('clientX' in event) {
+    return {
+      emoji: emojis[0],
+      origin: {
+        x: event.clientX,
+        y: event.clientY,
+      },
+    };
+  }
+
+  const firstEmoticon = currentTarget.querySelector('[data-emoticon]');
+  if (firstEmoticon instanceof HTMLElement) {
+    const emoji = firstEmoticon.getAttribute('data-emoticon');
+    if (emoji) {
+      return {
+        emoji,
+        origin: getBurstPointFromElement(firstEmoticon),
+      };
+    }
+  }
+
+  return {
+    emoji: emojis[0],
+    origin: getBurstPointFromElement(currentTarget),
+  };
+}

src/app/features/room/emoji-confetti/sendEmojiConfetti.ts

@@ -0,0 +1,42 @@
+import { MatrixClient } from 'matrix-js-sdk';
+import { EMOJI_REG_G, JUMBO_EMOJI_REG } from '../../../utils/regex';
+import { trimReplyFromBody } from '../../../utils/room';
+import { emojis } from '../../../plugins/emoji';
+import { EMOJI_CONFETTI_EVENT_TYPE, EmojiConfettiContent } from './types';
+
+const SHORTCODE_PATTERN = /:([^\s:]+):/g;
+
+export function extractJumboEmojis(body: string): string[] {
+  const trimmedBody = trimReplyFromBody(body).trim();
+  if (!JUMBO_EMOJI_REG.test(trimmedBody)) return [];
+
+  const found: string[] = [];
+
+  for (const match of trimmedBody.matchAll(EMOJI_REG_G)) {
+    const emoji = match[1];
+    if (emoji) found.push(emoji);
+  }
+
+  for (const match of trimmedBody.matchAll(SHORTCODE_PATTERN)) {
+    const shortcode = match[1];
+    const resolved = emojis.find((emoji) => emoji.shortcode === shortcode);
+    if (resolved) found.push(resolved.unicode);
+  }
+
+  return found.length > 0 ? found : ['🎉'];
+}
+
+export function sendEmojiConfettiEvent(
+  mx: MatrixClient,
+  roomId: string,
+  targetEventId: string,
+  emojis: string[]
+) {
+  const content: EmojiConfettiContent = {
+    emojis,
+    msgtype: EMOJI_CONFETTI_EVENT_TYPE,
+    target_event_id: targetEventId,
+  };
+
+  return mx.sendEvent(roomId, EMOJI_CONFETTI_EVENT_TYPE as never, content);
+}

src/app/features/room/emoji-confetti/types.ts

@@ -0,0 +1,16 @@
+import type { BurstPoint } from './burstOrigin';
+
+export const EMOJI_CONFETTI_EVENT_TYPE = 'app.relay.emoji_confetti';
+
+export type EmojiConfettiContent = {
+  emojis?: string[];
+  msgtype?: string;
+  target_event_id?: string;
+};
+
+export type EmojiConfettiBurst = {
+  id: string;
+  targetEventId: string;
+  emojis: string[];
+  origin: BurstPoint;
+};

src/app/features/room/emoji-confetti/useEmojiConfetti.ts

@@ -0,0 +1,137 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { MatrixEvent, Room, RoomEvent } from 'matrix-js-sdk';
+import { BurstPoint, resolveBurstOrigin } from './burstOrigin';
+import {
+  EMOJI_CONFETTI_EVENT_TYPE,
+  EmojiConfettiBurst,
+  EmojiConfettiContent,
+} from './types';
+
+function scheduleBurstFromValues(
+  burstId: string,
+  emojis: string[],
+  targetEventId: string | undefined,
+  onBurst: (burst: EmojiConfettiBurst) => void,
+  attempt = 0,
+  explicitOrigin?: BurstPoint
+) {
+  const targetElement =
+    targetEventId &&
+    document.querySelector(`[data-message-id="${CSS.escape(targetEventId)}"]`);
+
+  if (targetEventId && !targetElement && attempt < 8) {
+    window.setTimeout(
+      () =>
+        scheduleBurstFromValues(
+          burstId,
+          emojis,
+          targetEventId,
+          onBurst,
+          attempt + 1,
+          explicitOrigin
+        ),
+      50
+    );
+    return;
+  }
+
+  onBurst({
+    id: burstId,
+    targetEventId: targetEventId ?? '',
+    emojis: emojis.length > 0 ? emojis : ['🎉'],
+    origin: resolveBurstOrigin(targetEventId, emojis, explicitOrigin),
+  });
+}
+
+function scheduleBurst(
+  event: MatrixEvent,
+  onBurst: (burst: EmojiConfettiBurst) => void,
+  attempt = 0
+) {
+  const eventId = event.getId();
+  if (!eventId) return;
+
+  const { emojis, targetEventId } = parseEmojiConfettiContent(event.getContent());
+  scheduleBurstFromValues(eventId, emojis, targetEventId, onBurst, attempt);
+}
+
+function parseEmojiConfettiContent(content: unknown): { emojis: string[]; targetEventId?: string } {
+  const confettiContent = content as EmojiConfettiContent;
+  const emojis = Array.isArray(confettiContent.emojis)
+    ? confettiContent.emojis.filter((emoji): emoji is string => typeof emoji === 'string' && emoji.length > 0)
+    : [];
+
+  return {
+    emojis: emojis.length > 0 ? emojis : ['🎉'],
+    targetEventId:
+      typeof confettiContent.target_event_id === 'string'
+        ? confettiContent.target_event_id
+        : undefined,
+  };
+}
+
+export function useEmojiConfetti(room: Room) {
+  const [bursts, setBursts] = useState<EmojiConfettiBurst[]>([]);
+  const seenEventIdsRef = useRef(new Set<string>());
+  const ownEventIdsRef = useRef(new Set<string>());
+
+  const addBurst = useCallback((burst: EmojiConfettiBurst) => {
+    setBursts((current) => [...current, burst]);
+  }, []);
+
+  const registerOwnEventId = useCallback((eventId: string) => {
+    ownEventIdsRef.current.add(eventId);
+  }, []);
+
+  const queueBurst = useCallback((event: MatrixEvent) => {
+    const eventId = event.getId();
+    if (!eventId || seenEventIdsRef.current.has(eventId)) return;
+
+    seenEventIdsRef.current.add(eventId);
+
+    if (ownEventIdsRef.current.has(eventId)) {
+      ownEventIdsRef.current.delete(eventId);
+      return;
+    }
+
+    scheduleBurst(event, addBurst);
+  }, [addBurst]);
+
+  const triggerLocalBurst = useCallback(
+    (targetEventId: string, emojis: string[], origin?: BurstPoint) => {
+      const burstId = `local-${targetEventId}-${Date.now()}`;
+      scheduleBurstFromValues(burstId, emojis, targetEventId, addBurst, 0, origin);
+    },
+    [addBurst]
+  );
+
+  useEffect(() => {
+    const handleTimeline: (
+      event: MatrixEvent,
+      eventRoom: Room | undefined,
+      toStartOfTimeline?: boolean,
+      removed?: boolean
+    ) => void = (event, eventRoom, toStartOfTimeline, removed) => {
+      if (removed || toStartOfTimeline || eventRoom?.roomId !== room.roomId) return;
+      if (event.getType() !== EMOJI_CONFETTI_EVENT_TYPE) return;
+
+      queueBurst(event);
+    };
+
+    room.on(RoomEvent.Timeline, handleTimeline);
+    return () => {
+      room.off(RoomEvent.Timeline, handleTimeline);
+    };
+  }, [queueBurst, room]);
+
+  const removeBurst = useCallback((burstId: string) => {
+    setBursts((current) => current.filter((burst) => burst.id !== burstId));
+  }, []);
+
+  return {
+    bursts,
+    removeBurst,
+    triggerLocalBurst,
+    registerOwnEventId,
+  };
+}

src/app/features/room/emoji-confetti/useJumboEmojiConfetti.ts

@@ -0,0 +1,37 @@
+import { KeyboardEvent, MouseEvent, useCallback } from 'react';
+import { Room } from 'matrix-js-sdk';
+import { useMatrixClient } from '../../../hooks/useMatrixClient';
+import { resolveClickedEmoji } from './resolveClickedEmoji';
+import { sendEmojiConfettiEvent } from './sendEmojiConfetti';
+import { useEmojiConfetti } from './useEmojiConfetti';
+
+export function useJumboEmojiConfetti(room: Room) {
+  const mx = useMatrixClient();
+  const { bursts, removeBurst, triggerLocalBurst, registerOwnEventId } = useEmojiConfetti(room);
+
+  const handleJumboEmojiClick = useCallback(
+    (targetEventId: string, body: string, event: MouseEvent<HTMLElement> | KeyboardEvent<HTMLElement>) => {
+      const clicked = resolveClickedEmoji(event, body);
+      if (!clicked) return;
+
+      const emojis = [clicked.emoji];
+
+      triggerLocalBurst(targetEventId, emojis, clicked.origin);
+      sendEmojiConfettiEvent(mx, room.roomId, targetEventId, emojis)
+        .then((response) => {
+          const eventId = response?.event_id;
+          if (eventId) registerOwnEventId(eventId);
+        })
+        .catch((error) => {
+          console.error('[emoji-confetti] Failed to send confetti event:', error);
+        });
+    },
+    [mx, registerOwnEventId, room.roomId, triggerLocalBurst]
+  );
+
+  return {
+    bursts,
+    removeBurst,
+    handleJumboEmojiClick,
+  };
+}

src/app/features/room/room-media-menu/RoomMediaMenu.css.ts

@@ -0,0 +1,149 @@
+import { style } from '@vanilla-extract/css';
+import { color, config, toRem } from 'folds';
+
+export const MediaDrawer = style({
+  width: toRem(399),
+});
+
+export const MediaDrawerSolo = style({
+  width: '100%',
+  flexGrow: 1,
+});
+
+export const MediaDrawerHeader = style({
+  flexShrink: 0,
+  padding: `0 ${config.space.S200} 0 ${config.space.S300}`,
+  borderBottomWidth: config.borderWidth.B300,
+});
+
+export const MediaDrawerContentBase = style({
+  position: 'relative',
+  overflow: 'hidden',
+});
+
+export const MediaDrawerContent = style({
+  padding: `${config.space.S100} ${config.space.S200} ${config.space.S200}`,
+});
+
+export const MediaMonthSection = style({
+  marginBottom: config.space.S300,
+});
+
+export const MediaMonthHeader = style({
+  position: 'sticky',
+  top: 0,
+  zIndex: 2,
+  margin: '5px 0',
+  padding: `0 ${config.space.S100}`,
+  lineHeight: 1.2,
+  backgroundColor: color.Background.Container,
+  color: color.Background.OnContainer,
+});
+
+export const MediaDaySection = style({
+  marginBottom: config.space.S300,
+});
+
+export const MediaDayHeader = style({
+  padding: `${config.space.S100} ${config.space.S100} ${config.space.S200}`,
+  color: color.Background.OnContainer,
+});
+
+export const MediaGrid = style({
+  display: 'grid',
+  gridTemplateColumns: 'repeat(3, minmax(0, 1fr))',
+  gap: config.space.S200,
+});
+
+export const MediaTile = style({
+  position: 'relative',
+  aspectRatio: '1',
+  borderRadius: config.radii.R400,
+  overflow: 'hidden',
+  border: 'none',
+  padding: 0,
+  cursor: 'pointer',
+  backgroundColor: color.SurfaceVariant.Container,
+  color: color.SurfaceVariant.OnContainer,
+});
+
+export const MediaTileImg = style({
+  width: '100%',
+  height: '100%',
+  objectFit: 'cover',
+  display: 'block',
+});
+
+export const MediaTileBadge = style({
+  position: 'absolute',
+  right: config.space.S100,
+  bottom: config.space.S100,
+  display: 'flex',
+  alignItems: 'center',
+  justifyContent: 'center',
+  width: toRem(24),
+  height: toRem(24),
+  borderRadius: config.radii.R400,
+  backgroundColor: 'rgba(0, 0, 0, 0.55)',
+  color: '#fff',
+});
+
+export const MediaEmpty = style({
+  padding: config.space.S400,
+  textAlign: 'center',
+});
+
+export const MediaFooter = style({
+  padding: config.space.S200,
+  display: 'flex',
+  justifyContent: 'center',
+});
+
+export const MediaUserFiltersScroll = style({
+  flexShrink: 0,
+  flexGrow: 0,
+  overflowX: 'auto',
+  overflowY: 'hidden',
+  scrollbarWidth: 'thin',
+  scrollbarColor: `${color.SurfaceVariant.ContainerLine} ${color.SurfaceVariant.Container}`,
+  selectors: {
+    '&::-webkit-scrollbar': {
+      height: toRem(8),
+    },
+    '&::-webkit-scrollbar-track': {
+      backgroundColor: color.SurfaceVariant.Container,
+      borderRadius: config.radii.R400,
+    },
+    '&::-webkit-scrollbar-thumb': {
+      backgroundColor: color.SurfaceVariant.ContainerLine,
+      borderRadius: config.radii.R400,
+      border: `${config.borderWidth.B300} solid ${color.SurfaceVariant.Container}`,
+      backgroundClip: 'padding-box',
+    },
+    '&::-webkit-scrollbar-thumb:hover': {
+      backgroundColor: color.Surface.ContainerLine,
+    },
+  },
+});
+
+export const MediaUserFilters = style({
+  display: 'flex',
+  flexWrap: 'nowrap',
+  alignItems: 'center',
+  gap: config.space.S500,
+  padding: `${config.space.S200} ${config.space.S200}`,
+  width: 'max-content',
+  minWidth: '100%',
+  boxSizing: 'border-box',
+});
+
+export const MediaUserChip = style({
+  flexShrink: 0,
+});
+
+export const MediaUserChipLabel = style({
+  maxWidth: toRem(72),
+  overflow: 'hidden',
+  textOverflow: 'ellipsis',
+  whiteSpace: 'nowrap',
+});

src/app/features/room/room-media-menu/RoomMediaMenu.tsx

@@ -0,0 +1,524 @@
+import React, { useCallback, useEffect, useLayoutEffect, useMemo, useRef, useState } from 'react';
+import {
+  Box,
+  Header,
+  IconButton,
+  Scroll,
+  Spinner,
+  Text,
+  as,
+  config,
+  Chip,
+  Avatar,
+} from 'folds';
+import { MsgType, Room } from 'matrix-js-sdk';
+import { useAtom } from 'jotai';
+import classNames from 'classnames';
+import { Icon, Icons } from '../../../components/icons';
+import * as css from './RoomMediaMenu.css';
+import { RoomMediaItem, useRoomMediaEvents } from '../../../hooks/useRoomMediaEvents';
+import { useMatrixClient } from '../../../hooks/useMatrixClient';
+import { useMediaAuthentication } from '../../../hooks/useMediaAuthentication';
+import {
+  decryptFile,
+  downloadEncryptedMedia,
+  getMxIdLocalPart,
+  isAuthenticatedMediaUrl,
+  mxcUrlToHttp,
+} from '../../../utils/matrix';
+import { useRoomNavigate } from '../../../hooks/useRoomNavigate';
+import { Image } from '../../../components/media';
+import { AsyncStatus, useAsyncCallback } from '../../../hooks/useAsyncCallback';
+import { getCurrentAccessToken } from '../../../utils/auth';
+import { FALLBACK_MIMETYPE } from '../../../utils/mimeTypes';
+import { VideoFrameThumbnail } from '../../../components/message/content/VideoFrameThumbnail';
+import { getMemberAvatarMxc, getMemberDisplayName } from '../../../utils/room';
+import { UserAvatar } from '../../../components/user-avatar';
+import {
+  getMediaDrawerScrollTop,
+  isMediaDrawerAtom,
+  setMediaDrawerScrollTop,
+} from '../../../state/mediaDrawer';
+import { ContainerColor } from '../../../styles/ContainerColor.css';
+
+const fetchAuthenticatedMedia = async (
+  url: string,
+  accessToken: string | null
+): Promise<string> => {
+  try {
+    let response = await fetch(url, {
+      method: 'GET',
+      headers: accessToken ? { Authorization: `Bearer ${accessToken}` } : undefined,
+    });
+
+    if (!response.ok && response.status === 401 && accessToken) {
+      response = await fetch(url, { method: 'GET' });
+    }
+
+    if (!response.ok) return url;
+    const blob = await response.blob();
+    return URL.createObjectURL(blob);
+  } catch {
+    return url;
+  }
+};
+
+type MediaTileThumbProps = {
+  item: RoomMediaItem;
+};
+
+function MediaTileImageThumb({ item }: { item: RoomMediaItem & { thumbMxc: string } }) {
+  const mx = useMatrixClient();
+  const useAuthentication = useMediaAuthentication();
+
+  const [srcState, loadSrc] = useAsyncCallback(
+    useCallback(async () => {
+      const accessToken = getCurrentAccessToken();
+
+      if (item.thumbEncInfo) {
+        const mediaUrl = mxcUrlToHttp(mx, item.thumbMxc, useAuthentication) ?? item.thumbMxc;
+        const fileContent = await downloadEncryptedMedia(
+          mediaUrl,
+          (encBuf) =>
+            decryptFile(encBuf, item.thumbMimeType ?? FALLBACK_MIMETYPE, item.thumbEncInfo!),
+          accessToken
+        );
+        return URL.createObjectURL(fileContent);
+      }
+
+      const mediaUrl =
+        mxcUrlToHttp(mx, item.thumbMxc, useAuthentication, 240, 240, 'crop') ?? item.thumbMxc;
+
+      if (useAuthentication && isAuthenticatedMediaUrl(mediaUrl)) {
+        return fetchAuthenticatedMedia(mediaUrl, accessToken);
+      }
+
+      return mediaUrl;
+    }, [mx, item.thumbMxc, item.thumbEncInfo, item.thumbMimeType, useAuthentication])
+  );
+
+  useEffect(() => {
+    loadSrc();
+  }, [loadSrc]);
+
+  useEffect(() => {
+    if (srcState.status !== AsyncStatus.Success) return undefined;
+    const src = srcState.data;
+    if (!src.startsWith('blob:')) return undefined;
+    return () => URL.revokeObjectURL(src);
+  }, [srcState]);
+
+  if (srcState.status === AsyncStatus.Success) {
+    return <Image className={css.MediaTileImg} src={srcState.data} alt={item.body} loading="lazy" />;
+  }
+
+  return (
+    <Box alignItems="Center" justifyContent="Center" style={{ width: '100%', height: '100%' }}>
+      {srcState.status === AsyncStatus.Loading ? (
+        <Spinner size="200" />
+      ) : (
+        <Icon src={Icons.Photo} size="400" />
+      )}
+    </Box>
+  );
+}
+
+function MediaTileFullImageThumb({ item }: { item: RoomMediaItem }) {
+  const mx = useMatrixClient();
+  const useAuthentication = useMediaAuthentication();
+
+  const [srcState, loadSrc] = useAsyncCallback(
+    useCallback(async () => {
+      const accessToken = getCurrentAccessToken();
+      const mediaUrl = mxcUrlToHttp(mx, item.fullMxc, useAuthentication) ?? item.fullMxc;
+
+      if (item.fullEncInfo) {
+        const fileContent = await downloadEncryptedMedia(
+          mediaUrl,
+          (encBuf) =>
+            decryptFile(encBuf, item.fullMimeType ?? FALLBACK_MIMETYPE, item.fullEncInfo!),
+          accessToken
+        );
+        return URL.createObjectURL(fileContent);
+      }
+
+      if (useAuthentication && isAuthenticatedMediaUrl(mediaUrl)) {
+        return fetchAuthenticatedMedia(mediaUrl, accessToken);
+      }
+
+      return mediaUrl;
+    }, [mx, item.fullMxc, item.fullEncInfo, item.fullMimeType, useAuthentication])
+  );
+
+  useEffect(() => {
+    loadSrc();
+  }, [loadSrc]);
+
+  useEffect(() => {
+    if (srcState.status !== AsyncStatus.Success) return undefined;
+    const src = srcState.data;
+    if (!src.startsWith('blob:')) return undefined;
+    return () => URL.revokeObjectURL(src);
+  }, [srcState]);
+
+  if (srcState.status === AsyncStatus.Success) {
+    return <Image className={css.MediaTileImg} src={srcState.data} alt={item.body} loading="lazy" />;
+  }
+
+  return (
+    <Box alignItems="Center" justifyContent="Center" style={{ width: '100%', height: '100%' }}>
+      {srcState.status === AsyncStatus.Loading ? (
+        <Spinner size="200" />
+      ) : (
+        <Icon src={Icons.Photo} size="400" />
+      )}
+    </Box>
+  );
+}
+
+function MediaTileThumb({ item }: MediaTileThumbProps) {
+  if (item.thumbMxc) {
+    return <MediaTileImageThumb item={{ ...item, thumbMxc: item.thumbMxc }} />;
+  }
+
+  if (item.msgtype === MsgType.Video) {
+    return (
+      <Box style={{ width: '100%', height: '100%', position: 'relative' }}>
+        <Box
+          alignItems="Center"
+          justifyContent="Center"
+          style={{ position: 'absolute', inset: 0 }}
+        >
+          <Spinner size="200" />
+        </Box>
+        <VideoFrameThumbnail
+          mimeType={item.fullMimeType ?? 'video/mp4'}
+          url={item.fullMxc}
+          encInfo={item.fullEncInfo}
+          renderImage={(src) => (
+            <Image className={css.MediaTileImg} src={src} alt={item.body} loading="lazy" />
+          )}
+        />
+      </Box>
+    );
+  }
+
+  return <MediaTileFullImageThumb item={item} />;
+}
+
+type MediaDayGroup = {
+  dayKey: string;
+  dayLabel: string;
+  items: RoomMediaItem[];
+};
+
+type MediaMonthGroup = {
+  monthKey: string;
+  monthLabel: string;
+  days: MediaDayGroup[];
+};
+
+const monthFormatter = new Intl.DateTimeFormat(undefined, {
+  month: 'long',
+  year: 'numeric',
+});
+
+const dayFormatter = new Intl.DateTimeFormat(undefined, {
+  weekday: 'short',
+  month: 'short',
+  day: 'numeric',
+});
+
+const sameDayFormatter = new Intl.DateTimeFormat(undefined, {
+  year: 'numeric',
+  month: '2-digit',
+  day: '2-digit',
+});
+
+const formatDayLabel = (ts: number): string => {
+  const date = new Date(ts);
+  const today = new Date();
+  const yesterday = new Date();
+  yesterday.setDate(today.getDate() - 1);
+
+  if (sameDayFormatter.format(date) === sameDayFormatter.format(today)) return 'Today';
+  if (sameDayFormatter.format(date) === sameDayFormatter.format(yesterday)) return 'Yesterday';
+  return dayFormatter.format(date);
+};
+
+const groupMediaByMonthAndDay = (items: RoomMediaItem[]): MediaMonthGroup[] => {
+  const months: MediaMonthGroup[] = [];
+
+  for (const item of items) {
+    const date = new Date(item.ts);
+    const monthKey = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}`;
+    const dayKey = `${monthKey}-${String(date.getDate()).padStart(2, '0')}`;
+
+    let month = months[months.length - 1];
+    if (!month || month.monthKey !== monthKey) {
+      month = {
+        monthKey,
+        monthLabel: monthFormatter.format(date),
+        days: [],
+      };
+      months.push(month);
+    }
+
+    let day = month.days[month.days.length - 1];
+    if (!day || day.dayKey !== dayKey) {
+      day = {
+        dayKey,
+        dayLabel: formatDayLabel(item.ts),
+        items: [],
+      };
+      month.days.push(day);
+    }
+
+    day.items.push(item);
+  }
+
+  return months;
+};
+
+type MediaSenderChip = {
+  userId: string;
+  name: string;
+  avatarMxc?: string;
+  count: number;
+};
+
+export type MediaDrawerProps = {
+  room: Room;
+  /** Full-page takeover when the layout is too narrow for a side rail. */
+  solo?: boolean;
+};
+
+export const MediaDrawer = as<'div', MediaDrawerProps>(({ room, solo = false, className, ...props }, ref) => {
+  const mx = useMatrixClient();
+  const useAuthentication = useMediaAuthentication();
+  const { navigateRoom } = useRoomNavigate();
+  const [, setMediaDrawer] = useAtom(isMediaDrawerAtom);
+  const { items, loading, hasMore, loadMore } = useRoomMediaEvents(room);
+  const [excludedSenders, setExcludedSenders] = useState<Set<string>>(() => new Set());
+  const scrollRef = useRef<HTMLDivElement>(null);
+  const restoredScrollRef = useRef(false);
+
+  const senders = useMemo<MediaSenderChip[]>(() => {
+    const counts = new Map<string, number>();
+    for (const item of items) {
+      counts.set(item.sender, (counts.get(item.sender) ?? 0) + 1);
+    }
+
+    return Array.from(counts.entries())
+      .map(([userId, count]) => ({
+        userId,
+        count,
+        name: getMemberDisplayName(room, userId) ?? getMxIdLocalPart(userId) ?? userId,
+        avatarMxc: getMemberAvatarMxc(room, userId),
+      }))
+      .sort((a, b) => b.count - a.count || a.name.localeCompare(b.name));
+  }, [items, room]);
+
+  const filteredItems = useMemo(
+    () => items.filter((item) => !excludedSenders.has(item.sender)),
+    [items, excludedSenders]
+  );
+  const sections = useMemo(() => groupMediaByMonthAndDay(filteredItems), [filteredItems]);
+
+  useLayoutEffect(() => {
+    restoredScrollRef.current = false;
+  }, [room.roomId]);
+
+  useLayoutEffect(() => {
+    if (restoredScrollRef.current || items.length === 0) return;
+    const el = scrollRef.current;
+    if (!el) return;
+    const saved = getMediaDrawerScrollTop(room.roomId);
+    if (typeof saved === 'number') {
+      el.scrollTop = saved;
+    }
+    restoredScrollRef.current = true;
+  }, [room.roomId, items.length]);
+
+  const handleClose = useCallback(() => {
+    setMediaDrawer(false);
+  }, [setMediaDrawer]);
+
+  const handleSenderClick = useCallback(
+    (evt: React.MouseEvent, userId: string) => {
+      if (evt.ctrlKey || evt.metaKey) {
+        evt.preventDefault();
+        const allIds = senders.map((sender) => sender.userId);
+        setExcludedSenders((prev) => {
+          const enabledIds = allIds.filter((id) => !prev.has(id));
+          const alreadySolo = enabledIds.length === 1 && enabledIds[0] === userId;
+          if (alreadySolo) return new Set();
+          return new Set(allIds.filter((id) => id !== userId));
+        });
+        return;
+      }
+
+      setExcludedSenders((prev) => {
+        const next = new Set(prev);
+        if (next.has(userId)) next.delete(userId);
+        else next.add(userId);
+        return next;
+      });
+    },
+    [senders]
+  );
+
+  const handleOpen = useCallback(
+    (eventId: string) => {
+      navigateRoom(room.roomId, eventId);
+      if (solo) setMediaDrawer(false);
+    },
+    [navigateRoom, room.roomId, solo, setMediaDrawer]
+  );
+
+  const handleScroll = useCallback(
+    (evt: React.UIEvent<HTMLDivElement>) => {
+      const el = evt.currentTarget;
+      setMediaDrawerScrollTop(room.roomId, el.scrollTop);
+      const nearBottom = el.scrollTop + el.clientHeight >= el.scrollHeight - 80;
+      if (nearBottom && hasMore && !loading) {
+        loadMore();
+      }
+    },
+    [hasMore, loading, loadMore, room.roomId]
+  );
+
+  return (
+    <Box
+      shrink="No"
+      grow={solo ? 'Yes' : undefined}
+      direction="Column"
+      className={classNames(
+        solo ? css.MediaDrawerSolo : css.MediaDrawer,
+        ContainerColor({ variant: 'Background' }),
+        className
+      )}
+      {...props}
+      ref={ref}
+    >
+      <Header className={css.MediaDrawerHeader} size="600" variant="Background">
+        <Box grow="Yes" alignItems="Center">
+          <Text size="H5" truncate>
+            Shared Media
+          </Text>
+        </Box>
+        <IconButton size="300" onClick={handleClose} radii="300" aria-label="Close">
+          <Icon src={Icons.Cross} size="100" />
+        </IconButton>
+      </Header>
+
+      {senders.length > 0 && (
+        <div className={css.MediaUserFiltersScroll}>
+          <div className={css.MediaUserFilters}>
+            {senders.map((sender) => {
+              const enabled = !excludedSenders.has(sender.userId);
+              const avatarUrl = sender.avatarMxc
+                ? mxcUrlToHttp(mx, sender.avatarMxc, useAuthentication, 48, 48, 'crop') ??
+                  undefined
+                : undefined;
+
+              return (
+                <Chip
+                  key={sender.userId}
+                  className={css.MediaUserChip}
+                  variant={enabled ? 'Primary' : 'SurfaceVariant'}
+                  outlined
+                  radii="Pill"
+                  aria-pressed={enabled}
+                  onClick={(evt) => handleSenderClick(evt, sender.userId)}
+                  before={
+                    <Avatar size="200">
+                      <UserAvatar
+                        userId={sender.userId}
+                        src={avatarUrl}
+                        alt={sender.name}
+                        renderFallback={() => (
+                          <Text as="span" size="L400">
+                            {sender.name.slice(0, 1).toUpperCase()}
+                          </Text>
+                        )}
+                      />
+                    </Avatar>
+                  }
+                >
+                  <Text className={css.MediaUserChipLabel} size="T200" truncate>
+                    {sender.name}
+                  </Text>
+                </Chip>
+              );
+            })}
+          </div>
+        </div>
+      )}
+
+      <Box grow="Yes" direction="Column" className={css.MediaDrawerContentBase}>
+        <Scroll
+          ref={scrollRef}
+          visibility="Hover"
+          hideTrack
+          variant="Background"
+          onScroll={handleScroll}
+        >
+          <div className={css.MediaDrawerContent}>
+            {items.length === 0 && !loading && (
+              <Text className={css.MediaEmpty} size="T300" priority="300">
+                No shared photos or videos yet.
+              </Text>
+            )}
+
+            {items.length > 0 && filteredItems.length === 0 && (
+              <Text className={css.MediaEmpty} size="T300" priority="300">
+                No media from the selected people.
+              </Text>
+            )}
+
+            {sections.map((month) => (
+              <section key={month.monthKey} className={css.MediaMonthSection}>
+                <Text className={css.MediaMonthHeader} size="H6" as="h3">
+                  {month.monthLabel}
+                </Text>
+                {month.days.map((day) => (
+                  <div key={day.dayKey} className={css.MediaDaySection}>
+                    <Text className={css.MediaDayHeader} size="T200" priority="300" as="h4">
+                      {day.dayLabel}
+                    </Text>
+                    <div className={css.MediaGrid}>
+                      {day.items.map((item) => (
+                        <button
+                          key={item.eventId}
+                          type="button"
+                          className={css.MediaTile}
+                          onClick={() => handleOpen(item.eventId)}
+                          title={item.body}
+                          aria-label={item.body}
+                        >
+                          <MediaTileThumb item={item} />
+                          {item.msgtype === MsgType.Video && (
+                            <span className={css.MediaTileBadge}>
+                              <Icon src={Icons.Play} size="100" />
+                            </span>
+                          )}
+                        </button>
+                      ))}
+                    </div>
+                  </div>
+                ))}
+              </section>
+            ))}
+
+            {(loading || hasMore) && (
+              <div className={css.MediaFooter} style={{ minHeight: config.space.S700 }}>
+                {loading && <Spinner size="400" />}
+              </div>
+            )}
+          </div>
+        </Scroll>
+      </Box>
+    </Box>
+  );
+});

src/app/features/room/room-media-menu/index.ts

@@ -0,0 +1 @@
+export * from './RoomMediaMenu';

src/app/features/search/Search.tsx

@@ -145,11 +145,23 @@ export function Search({ requestClose }: SearchProps) {
 
   const getTargetStr: SearchItemStrGetter<string> = useCallback(
     (roomId: string) => {
-      const roomName = getRoom(roomId)?.name ?? roomId;
+      const room = getRoom(roomId);
+      const roomName = room?.name ?? roomId;
       if (mDirects.has(roomId)) {
         const targetUserId = getDmUserId(roomId, getRoom, mx.getSafeUserId());
-        const targetUsername = targetUserId && getMxIdLocalPart(targetUserId);
+        if (!targetUserId) return roomName;
-        if (targetUsername) return [roomName, targetUsername];
+        const targetUsername = getMxIdLocalPart(targetUserId);
+        const targetServer = getMxIdServer(targetUserId);
+        const member = room?.getMember(targetUserId);
+        const displayName = member?.name || member?.rawDisplayName;
+        return [
+          roomName,
+          displayName,
+          targetUsername,
+          targetUserId,
+          targetServer ? `@${targetUsername}:${targetServer}` : undefined,
+          targetServer,
+        ].filter((s): s is string => typeof s === 'string' && s.length > 0);
       }
       return roomName;
     },

src/app/features/settings/account/Profile.tsx

@@ -39,12 +39,14 @@ import { AvatarPresence, PresenceBadge } from '../../../components/presence';
 import { BreakWord, LineClamp3 } from '../../../styles/Text.css';
 import colorMXID, { getColorMXIDValue } from '../../../../util/colorMXID';
 import {
-  extractMetadataFromImage,
   embedMetadataInImage,
   detectImageFormat,
   getMimeType,
   getExtension,
   ImageMetadata,
+  needsPngForMetadata,
+  convertImageDataToPng,
+  uint8ArrayToBlob,
 } from '../../../utils/imageMetadata';
 import { getCurrentAccessToken } from '../../../utils/auth';
 
@@ -473,7 +475,35 @@ function ProfileBanner({ avatarRef, nameRef }: { avatarRef: React.RefObject<HTML
       setSaving(true);
       setError(undefined);
       try {
-        // Fetch the raw uploaded image so we can embed existing banner/color metadata
+        // Re-embed existing banner/color/style into the new avatar when present
+        const metadata: ImageMetadata = {
+          banner: userBanner,
+          color: userColor,
+          avatarBorderColor: profileStyle.avatarBorderColor,
+          gradient: profileStyle.gradient,
+        };
+        const hasMetadata = Boolean(
+          metadata.color ||
+            metadata.banner ||
+            metadata.avatarBorderColor ||
+            metadata.gradient
+        );
+
+        // Nothing to re-embed — use the already-uploaded MXC directly
+        if (!hasMetadata) {
+          await mx.setAvatarUrl(upload.mxc);
+          const userId = mx.getUserId();
+          if (userId) {
+            const user = mx.getUser(userId);
+            if (user && user.avatarUrl !== upload.mxc) {
+              user.setAvatarUrl(upload.mxc);
+            }
+          }
+          setAvatarFile(undefined);
+          await syncUserAvatar();
+          return;
+        }
+
         const httpUrl = mxcUrlToHttp(mx, upload.mxc, useAuthentication);
         if (!httpUrl) throw new Error('Could not resolve uploaded avatar URL');
 
@@ -490,22 +520,25 @@ function ProfileBanner({ avatarRef, nameRef }: { avatarRef: React.RefObject<HTML
         }
 
         if (!response.ok) throw new Error('Failed to fetch uploaded avatar');
-        const avatarData = await response.arrayBuffer();
+        let avatarData: ArrayBuffer | Uint8Array = await response.arrayBuffer();
 
-        const format = detectImageFormat(avatarData);
+        let format = detectImageFormat(avatarData);
         if (format === 'unknown') throw new Error('Unsupported avatar image format');
 
-        // Re-embed the existing banner URL and profile color into the new avatar
+        // Banner / border / gradient only live in PNG tEXt — convert JPEG/WebP/GIF first
-        const metadata: ImageMetadata = {
+        if (format !== 'png' && needsPngForMetadata(metadata)) {
-          banner: userBanner,
+          const pngData = await convertImageDataToPng(avatarData);
-          color: userColor,
+          if (!pngData) throw new Error('Failed to convert avatar to PNG for metadata');
-        };
+          avatarData = pngData;
+          format = 'png';
+        }
+
         const modifiedData = embedMetadataInImage(avatarData, metadata);
         if (!modifiedData) throw new Error('Failed to embed metadata in avatar');
 
         const mimeType = getMimeType(format);
         const extension = getExtension(format);
-        const blob = new Blob([modifiedData], { type: mimeType });
+        const blob = uint8ArrayToBlob(modifiedData, mimeType);
         const uploadResponse = await mx.uploadContent(blob, { name: `avatar.${extension}`, type: mimeType });
 
         await mx.setAvatarUrl(uploadResponse.content_uri);
@@ -525,7 +558,7 @@ function ProfileBanner({ avatarRef, nameRef }: { avatarRef: React.RefObject<HTML
       }
       setSaving(false);
     },
-    [mx, useAuthentication, userBanner, userColor, syncUserAvatar]
+    [mx, useAuthentication, userBanner, userColor, profileStyle, syncUserAvatar]
   );
 
   const handleRemoveBanner = async () => {

src/app/features/settings/general/General.tsx

@@ -8,6 +8,7 @@ import React, {
 } from 'react';
 import dayjs from 'dayjs';
 import { as, Box, Button, Chip, color, config, Header, IconButton, Input, Menu, MenuItem, PopOut, RectCords, Scroll, Switch, Text, toRem } from 'folds';
+import { useSetAtom } from 'jotai';
 import { Icon, Icons } from '../../../components/icons';
 import { HexColorPicker } from 'react-colorful';
 import { isKeyHotkey } from 'is-hotkey';
@@ -24,6 +25,7 @@ import {
   LightTheme,
   Theme,
   ThemeKind,
+  themePreviewIdAtom,
   useSystemThemeKind,
   useThemeNames,
   useThemes,
@@ -41,8 +43,25 @@ type ThemeSelectorProps = {
   onSelect: (theme: Theme) => void;
 };
 const ThemeSelector = as<'div', ThemeSelectorProps>(
-  ({ themeNames, themes, selected, onSelect, ...props }, ref) => (
+  ({ themeNames, themes, selected, onSelect, ...props }, ref) => {
-    <Menu {...props} ref={ref}>
+    const setPreviewId = useSetAtom(themePreviewIdAtom);
+
+    useEffect(
+      () => () => {
+        setPreviewId(undefined);
+      },
+      [setPreviewId]
+    );
+
+    const clearPreview = () => setPreviewId(undefined);
+    const previewTheme = (theme: Theme) => setPreviewId(theme.id);
+
+    return (
+      <Menu
+        {...props}
+        ref={ref}
+        onMouseLeave={clearPreview}
+      >
         <Box direction="Column" gap="100" style={{ padding: config.space.S100 }}>
           {themes.map((theme) => (
             <MenuItem
@@ -50,6 +69,8 @@ const ThemeSelector = as<'div', ThemeSelectorProps>(
               size="300"
               variant={theme.id === selected.id ? 'Primary' : 'Surface'}
               radii="300"
+              onMouseEnter={() => previewTheme(theme)}
+              onFocus={() => previewTheme(theme)}
               onClick={() => onSelect(theme)}
             >
               <Text size="T300">{themeNames[theme.id] ?? theme.id}</Text>
@@ -57,12 +78,14 @@ const ThemeSelector = as<'div', ThemeSelectorProps>(
           ))}
         </Box>
       </Menu>
-  )
+    );
+  }
 );
 
 function SelectTheme({ disabled }: { disabled?: boolean }) {
   const themes = useThemes();
   const themeNames = useThemeNames();
+  const setPreviewId = useSetAtom(themePreviewIdAtom);
   const [themeId, setThemeId] = useSetting(settingsAtom, 'themeId');
   const [menuCords, setMenuCords] = useState<RectCords>();
   const selectedTheme = themes.find((theme) => theme.id === themeId) ?? LightTheme;
@@ -72,10 +95,16 @@ function SelectTheme({ disabled }: { disabled?: boolean }) {
   };
 
   const handleThemeSelect = (theme: Theme) => {
+    setPreviewId(undefined);
     setThemeId(theme.id);
     setMenuCords(undefined);
   };
 
+  const closeMenu = () => {
+    setPreviewId(undefined);
+    setMenuCords(undefined);
+  };
+
   return (
     <>
       <Button
@@ -99,7 +128,7 @@ function SelectTheme({ disabled }: { disabled?: boolean }) {
           <FocusTrap
             focusTrapOptions={{
               initialFocus: false,
-              onDeactivate: () => setMenuCords(undefined),
+              onDeactivate: closeMenu,
               clickOutsideDeactivates: true,
               isKeyForward: (evt: KeyboardEvent) =>
                 evt.key === 'ArrowDown' || evt.key === 'ArrowRight',
@@ -125,6 +154,7 @@ function SystemThemePreferences() {
   const themeKind = useSystemThemeKind();
   const themeNames = useThemeNames();
   const themes = useThemes();
+  const setPreviewId = useSetAtom(themePreviewIdAtom);
   const [lightThemeId, setLightThemeId] = useSetting(settingsAtom, 'lightThemeId');
   const [darkThemeId, setDarkThemeId] = useSetting(settingsAtom, 'darkThemeId');
 
@@ -145,15 +175,27 @@ function SystemThemePreferences() {
   };
 
   const handleLightThemeSelect = (theme: Theme) => {
+    setPreviewId(undefined);
     setLightThemeId(theme.id);
     setLTCords(undefined);
   };
 
   const handleDarkThemeSelect = (theme: Theme) => {
+    setPreviewId(undefined);
     setDarkThemeId(theme.id);
     setDTCords(undefined);
   };
 
+  const closeLightMenu = () => {
+    setPreviewId(undefined);
+    setLTCords(undefined);
+  };
+
+  const closeDarkMenu = () => {
+    setPreviewId(undefined);
+    setDTCords(undefined);
+  };
+
   return (
     <Box wrap="Wrap" gap="400">
       <SettingTile
@@ -179,7 +221,7 @@ function SystemThemePreferences() {
           <FocusTrap
             focusTrapOptions={{
               initialFocus: false,
-              onDeactivate: () => setLTCords(undefined),
+              onDeactivate: closeLightMenu,
               clickOutsideDeactivates: true,
               isKeyForward: (evt: KeyboardEvent) =>
                 evt.key === 'ArrowDown' || evt.key === 'ArrowRight',
@@ -220,7 +262,7 @@ function SystemThemePreferences() {
           <FocusTrap
             focusTrapOptions={{
               initialFocus: false,
-              onDeactivate: () => setDTCords(undefined),
+              onDeactivate: closeDarkMenu,
               clickOutsideDeactivates: true,
               isKeyForward: (evt: KeyboardEvent) =>
                 evt.key === 'ArrowDown' || evt.key === 'ArrowRight',

src/app/features/settings/notifications/SystemNotification.tsx

@@ -170,22 +170,34 @@ type PushStatus = {
   registered: boolean;
   distributor: string;
   endpoint: string;
+  distributors: string[];
+  lastFailure: string;
+  autoStartBlocked: boolean;
 };
 
 /** Android-only section showing UnifiedPush registration status and controls. */
 function AndroidPushNotifications() {
   const [status, setStatus] = useState<PushStatus | undefined>(undefined);
   const [loading, setLoading] = useState(true);
+  const [lastError, setLastError] = useState<string | undefined>(undefined);
 
   const refresh = useCallback(async () => {
     setLoading(true);
     const s = await getBackgroundSyncStatus();
+    const distributors = Array.isArray(s?.distributors)
+      ? s.distributors
+      : typeof s?.distributors === 'string' && s.distributors && s.distributors !== '[]'
+        ? [s.distributors]
+        : [];
     setStatus(
       s
         ? {
             registered: s.registered,
             distributor: s.distributor || '',
             endpoint: s.endpoint || '',
+            distributors,
+            lastFailure: s.lastFailure || '',
+            autoStartBlocked: Boolean(s.autoStartBlocked),
           }
         : undefined
     );
@@ -198,8 +210,14 @@ function AndroidPushNotifications() {
 
   const [resetState, reset] = useAsyncCallback(
     useCallback(async () => {
-      await requestResetPushRegistration();
+      setLastError(undefined);
+      const result = await requestResetPushRegistration();
       await refresh();
+      if (!result.success) {
+        setLastError(
+          'Selected distributor but did not get a push endpoint. In ntfy: enable UnifiedPush, allow unrestricted battery, then try Reset again.'
+        );
+      }
     }, [refresh])
   );
 
@@ -214,6 +232,50 @@ function AndroidPushNotifications() {
     resetState.status === AsyncStatus.Loading ||
     pingState.status === AsyncStatus.Loading;
 
+  const statusDescription = (() => {
+    if (loading) return 'Loading status…';
+    if (status === undefined) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          Failed to read push status.
+        </Text>
+      );
+    }
+    if (status.registered) {
+      return (
+        <Text as="span" size="T200">
+          {`Distributor: ${status.distributor || 'unknown'}`}
+        </Text>
+      );
+    }
+    if (status.lastFailure === 'AUTO_START_BLOCKED' || status.autoStartBlocked) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          Phone is blocking auto-start for Paarrot. Open App Boot / Auto-start settings, allow Paarrot (and ntfy), then tap Reset.
+        </Text>
+      );
+    }
+    if (status.lastFailure) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          {`Registration failed (${status.lastFailure}). Tap Reset and pick ntfy again.`}
+        </Text>
+      );
+    }
+    if (status.distributors.length === 0) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          No UnifiedPush distributor found. Install ntfy from Play Store/F-Droid and enable UnifiedPush in ntfy settings.
+        </Text>
+      );
+    }
+    return (
+      <Text as="span" style={{ color: color.Warning?.Main ?? color.Critical.Main }} size="T200">
+        {`Found ${status.distributors.join(', ')} but not registered yet. Tap Reset and pick ntfy.`}
+      </Text>
+    );
+  })();
+
   return (
     <Box direction="Column" gap="100">
       <Text size="L400">Android Push (UnifiedPush)</Text>
@@ -226,29 +288,20 @@ function AndroidPushNotifications() {
         <SettingTile
           title="Background Notifications"
           description={
-            loading ? (
-              'Loading status…'
-            ) : status === undefined ? (
-              <Text as="span" style={{ color: color.Critical.Main }} size="T200">
-                Failed to read push status.
-              </Text>
-            ) : status.registered ? (
             <>
-                <Text as="span" size="T200">
+              {statusDescription}
-                  {`Distributor: ${status.distributor || 'unknown'}`}
+              {lastError ? (
+                <Text as="span" style={{ color: color.Critical.Main, display: 'block' }} size="T200">
+                  {lastError}
                 </Text>
+              ) : null}
             </>
-            ) : (
-              <Text as="span" style={{ color: color.Warning?.Main ?? color.Critical.Main }} size="T200">
-                Not registered. Tap &quot;Reset&quot; to choose a distributor app.
-              </Text>
-            )
           }
           after={loading ? <Spinner variant="Secondary" /> : undefined}
         />
         <SettingTile
           title="Change Distributor"
-          description="Re-open the UnifiedPush distributor selection dialog."
+          description="Shows a list of installed UnifiedPush apps (ntfy, etc.) and registers the one you pick."
           after={
             <Button
               size="300"

src/app/hooks/router/useDirectSelected.ts

@@ -1,5 +1,5 @@
 import { useMatch } from 'react-router-dom';
-import { getDirectCreatePath, getDirectPath } from '../../pages/pathUtils';
+import { getDirectCreatePath, getDirectPath, getDirectSearchPath } from '../../pages/pathUtils';
 
 export const useDirectSelected = (): boolean => {
   const directMatch = useMatch({
@@ -20,3 +20,13 @@ export const useDirectCreateSelected = (): boolean => {
 
   return !!match;
 };
+
+export const useDirectSearchSelected = (): boolean => {
+  const match = useMatch({
+    path: getDirectSearchPath(),
+    caseSensitive: true,
+    end: false,
+  });
+
+  return !!match;
+};

src/app/hooks/usePathWithOrigin.ts

@@ -1,12 +1,30 @@
 import { useMemo } from 'react';
 import { useClientConfig } from './useClientConfig';
 import { trimLeadingSlash, trimSlash, trimTrailingSlash } from '../utils/common';
+import { isElectron } from '../utils/tauri';
 
+/** Authority shown on Matrix SSO consent ("Continue to paarrot://desktop"). */
+export const ELECTRON_PROTOCOL_HOST = 'desktop';
+
+/**
+ * Build an absolute URL for the given in-app path.
+ *
+ * In Electron, SSO (and other browser handoffs) must return via paarrot://desktop/...
+ * — a named host so consent UI identifies the desktop app, and a real pathname
+ * (not a hash) because browsers strip fragments when launching custom protocols.
+ */
 export const usePathWithOrigin = (path: string): string => {
   const { hashRouter } = useClientConfig();
   const { origin } = window.location;
 
   const pathWithOrigin = useMemo(() => {
+    if (isElectron()) {
+      const basename = trimSlash(hashRouter?.basename ?? '');
+      const routeParts = [basename, trimLeadingSlash(path)].filter(Boolean);
+      const route = `/${routeParts.join('/')}`.replace(/\/{2,}/g, '/');
+      return `paarrot://${ELECTRON_PROTOCOL_HOST}${route}`;
+    }
+
     let url: string = trimSlash(origin);
 
     url += `/${trimSlash(import.meta.env.BASE_URL ?? '')}`;

src/app/hooks/useRoomMediaEvents.ts

@@ -0,0 +1,256 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import to from 'await-to-js';
+import {
+  Direction,
+  IRoomEvent,
+  MatrixEvent,
+  MsgType,
+  RelationType,
+  Room,
+} from 'matrix-js-sdk';
+import { CryptoBackend } from 'matrix-js-sdk/lib/common-crypto/CryptoBackend';
+import { EncryptedAttachmentInfo } from 'browser-encrypt-attachment';
+import { useMatrixClient } from './useMatrixClient';
+import { IEncryptedFile } from '../../types/matrix/common';
+
+export type RoomMediaItem = {
+  eventId: string;
+  msgtype: typeof MsgType.Image | typeof MsgType.Video;
+  /** MXC used for an image thumbnail when available. */
+  thumbMxc?: string;
+  thumbMimeType?: string;
+  thumbEncInfo?: EncryptedAttachmentInfo;
+  /** Full media MXC — used to extract a video frame when no image thumb exists. */
+  fullMxc: string;
+  fullMimeType?: string;
+  fullEncInfo?: EncryptedAttachmentInfo;
+  body: string;
+  ts: number;
+  sender: string;
+};
+
+const PAGE_SIZE = 50;
+const TARGET_BATCH = 24;
+const MAX_PAGES_PER_LOAD = 8;
+
+type RoomMediaCache = {
+  items: RoomMediaItem[];
+  hasMore: boolean;
+  nextToken: string | null;
+  seenIds: Set<string>;
+};
+
+/** Survives MediaDrawer remounts within the same room/session. */
+const mediaCache = new Map<string, RoomMediaCache>();
+
+const getOrCreateCache = (roomId: string): RoomMediaCache => {
+  const existing = mediaCache.get(roomId);
+  if (existing) return existing;
+  const created: RoomMediaCache = {
+    items: [],
+    hasMore: true,
+    nextToken: null,
+    seenIds: new Set(),
+  };
+  mediaCache.set(roomId, created);
+  return created;
+};
+
+const toMediaItem = (mEvent: MatrixEvent): RoomMediaItem | undefined => {
+  if (mEvent.isRedacted()) return undefined;
+
+  const relation = mEvent.getRelation();
+  if (relation?.rel_type === RelationType.Replace) return undefined;
+
+  const content = mEvent.getContent();
+  const msgtype = content.msgtype;
+  if (msgtype !== MsgType.Image && msgtype !== MsgType.Video) return undefined;
+
+  const file = content.file as IEncryptedFile | undefined;
+  const info = content.info as
+    | {
+        mimetype?: string;
+        thumbnail_url?: string;
+        thumbnail_info?: { mimetype?: string };
+        thumbnail_file?: IEncryptedFile;
+      }
+    | undefined;
+
+  const fullMxc =
+    (typeof content.url === 'string' && content.url) ||
+    (typeof file?.url === 'string' && file.url) ||
+    undefined;
+  if (!fullMxc) return undefined;
+
+  const thumbFile = info?.thumbnail_file;
+  const thumbMxc =
+    (typeof info?.thumbnail_url === 'string' && info.thumbnail_url) ||
+    (typeof thumbFile?.url === 'string' && thumbFile.url) ||
+    undefined;
+
+  const eventId = mEvent.getId();
+  const sender = mEvent.getSender();
+  if (!eventId || !sender) return undefined;
+
+  const usingThumbEnc = !!thumbMxc && thumbMxc === thumbFile?.url;
+
+  return {
+    eventId,
+    msgtype,
+    thumbMxc,
+    thumbMimeType: usingThumbEnc
+      ? info?.thumbnail_info?.mimetype
+      : thumbMxc
+        ? info?.thumbnail_info?.mimetype
+        : undefined,
+    thumbEncInfo: usingThumbEnc ? thumbFile : undefined,
+    fullMxc,
+    fullMimeType: info?.mimetype,
+    fullEncInfo: file,
+    body: typeof content.body === 'string' ? content.body : msgtype,
+    ts: mEvent.getTs(),
+    sender,
+  };
+};
+
+/**
+ * Paginates room history for image/video messages without mutating the live timeline.
+ */
+export const useRoomMediaEvents = (room: Room) => {
+  const mx = useMatrixClient();
+  const roomId = room.roomId;
+  const cacheRef = useRef(getOrCreateCache(roomId));
+  if (cacheRef.current !== mediaCache.get(roomId)) {
+    cacheRef.current = getOrCreateCache(roomId);
+  }
+
+  const [items, setItems] = useState<RoomMediaItem[]>(() => cacheRef.current.items);
+  const [loading, setLoading] = useState(false);
+  const [hasMore, setHasMore] = useState(() => cacheRef.current.hasMore);
+  const loadingRef = useRef(false);
+
+  const decryptEvent = useCallback(
+    async (raw: IRoomEvent | MatrixEvent) => {
+      const mEvent = raw instanceof MatrixEvent ? raw : new MatrixEvent(raw);
+      if (mEvent.isEncrypted() && mx.getCrypto()) {
+        await to(mEvent.attemptDecryption(mx.getCrypto() as CryptoBackend));
+      }
+      return mEvent;
+    },
+    [mx]
+  );
+
+  const fetchPages = useCallback(async () => {
+    const cache = cacheRef.current;
+    const collected: RoomMediaItem[] = [];
+
+    for (let page = 0; page < MAX_PAGES_PER_LOAD; page += 1) {
+      const response = await mx.createMessagesRequest(
+        roomId,
+        cache.nextToken,
+        PAGE_SIZE,
+        Direction.Backward
+      );
+
+      cache.nextToken = response.end ?? null;
+      if (!response.end) {
+        cache.hasMore = false;
+        setHasMore(false);
+      }
+
+      for (const raw of response.chunk ?? []) {
+        const mEvent = await decryptEvent(raw);
+        const item = toMediaItem(mEvent);
+        if (!item || cache.seenIds.has(item.eventId)) continue;
+        cache.seenIds.add(item.eventId);
+        collected.push(item);
+      }
+
+      if (collected.length >= TARGET_BATCH || !response.end) break;
+    }
+
+    return collected;
+  }, [mx, roomId, decryptEvent]);
+
+  const loadMore = useCallback(async () => {
+    const cache = cacheRef.current;
+    if (loadingRef.current || !cache.hasMore) return;
+    loadingRef.current = true;
+    setLoading(true);
+
+    try {
+      const collected = await fetchPages();
+      if (collected.length > 0) {
+        cache.items = [...cache.items, ...collected];
+        setItems(cache.items);
+      }
+    } finally {
+      loadingRef.current = false;
+      setLoading(false);
+    }
+  }, [fetchPages]);
+
+  useEffect(() => {
+    const cache = getOrCreateCache(roomId);
+    cacheRef.current = cache;
+
+    // Already loaded for this room — restore without re-fetching.
+    if (cache.items.length > 0 || cache.nextToken !== null || !cache.hasMore) {
+      setItems(cache.items);
+      setHasMore(cache.hasMore);
+      return undefined;
+    }
+
+    let cancelled = false;
+
+    const bootstrap = async () => {
+      cache.seenIds = new Set();
+      cache.nextToken = null;
+      cache.hasMore = true;
+      cache.items = [];
+      setItems([]);
+      setHasMore(true);
+      setLoading(true);
+      loadingRef.current = true;
+
+      try {
+        const localFound: RoomMediaItem[] = [];
+        const localEvents = room.getLiveTimeline().getEvents();
+        for (let i = localEvents.length - 1; i >= 0; i -= 1) {
+          const mEvent = await decryptEvent(localEvents[i]);
+          const item = toMediaItem(mEvent);
+          if (!item || cache.seenIds.has(item.eventId)) continue;
+          cache.seenIds.add(item.eventId);
+          localFound.push(item);
+        }
+
+        if (cancelled) return;
+        if (localFound.length > 0) {
+          cache.items = localFound;
+          setItems(localFound);
+        }
+
+        const collected = await fetchPages();
+        if (cancelled) return;
+        if (collected.length > 0) {
+          cache.items = [...cache.items, ...collected];
+          setItems(cache.items);
+        }
+      } finally {
+        if (!cancelled) {
+          loadingRef.current = false;
+          setLoading(false);
+        }
+      }
+    };
+
+    bootstrap();
+    return () => {
+      cancelled = true;
+    };
+    // Only re-bootstrap when switching rooms — not when callback identities change.
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [roomId]);
+
+  return { items, loading, hasMore, loadMore };
+};

src/app/hooks/useRoomNavigate.ts

@@ -1,5 +1,5 @@
 import { useCallback } from 'react';
-import { NavigateOptions, useNavigate } from 'react-router-dom';
+import { NavigateOptions, useLocation, useNavigate } from 'react-router-dom';
 import { useAtomValue } from 'jotai';
 import { getCanonicalAliasOrRoomId } from '../utils/matrix';
 import {
@@ -7,21 +7,25 @@ import {
   getHomeRoomPath,
   getSpacePath,
   getSpaceRoomPath,
+  withRoomEventId,
 } from '../pages/pathUtils';
 import { useMatrixClient } from './useMatrixClient';
 import { getOrphanParents, guessPerfectParent, isSpace } from '../utils/room';
 import { roomToParentsAtom } from '../state/room/roomToParents';
 import { mDirectAtom } from '../state/mDirectList';
+import { useSelectedRoom } from './router/useSelectedRoom';
 import { useSelectedSpace } from './router/useSelectedSpace';
 import { settingsAtom } from '../state/settings';
 import { useSetting } from '../state/hooks/settings';
 
 export const useRoomNavigate = () => {
   const navigate = useNavigate();
+  const location = useLocation();
   const mx = useMatrixClient();
   const roomToParents = useAtomValue(roomToParentsAtom);
   const mDirects = useAtomValue(mDirectAtom);
   const spaceSelectedId = useSelectedSpace();
+  const selectedRoomId = useSelectedRoom();
   const [developerTools] = useSetting(settingsAtom, 'developerTools');
 
   const navigateSpace = useCallback(
@@ -34,6 +38,14 @@ export const useRoomNavigate = () => {
 
   const navigateRoom = useCallback(
     (roomId: string, eventId?: string, opts?: NavigateOptions) => {
+      // Already viewing this room — keep the current home/direct/space URL and only
+      // change the event id. Otherwise guessPerfectParent can yank the sidebar to
+      // wherever the room "belongs".
+      if (selectedRoomId === roomId) {
+        navigate(withRoomEventId(location.pathname, eventId), opts);
+        return;
+      }
+
       const room = mx.getRoom(roomId);
       const roomIdOrAlias = getCanonicalAliasOrRoomId(mx, roomId);
       const openSpaceTimeline = developerTools && spaceSelectedId === roomId;
@@ -44,6 +56,19 @@ export const useRoomNavigate = () => {
       }
 
       const orphanParents = openSpaceTimeline ? [roomId] : getOrphanParents(roomToParents, roomId);
+
+      // Prefer Direct for m.direct rooms unless we are already browsing a parent space
+      // of this room (keep space chrome). Opening via space while roomToParents is still
+      // catching up used to hit JoinBeforeNavigate even though the DM was listed.
+      if (mDirects.has(roomId)) {
+        const stayInSelectedSpace =
+          Boolean(spaceSelectedId) && orphanParents.includes(spaceSelectedId!);
+        if (!stayInSelectedSpace) {
+          navigate(getDirectRoomPath(roomIdOrAlias, eventId), opts);
+          return;
+        }
+      }
+
       if (orphanParents.length > 0) {
         let parentSpace: string;
         if (spaceSelectedId && orphanParents.includes(spaceSelectedId)) {
@@ -61,14 +86,18 @@ export const useRoomNavigate = () => {
         return;
       }
 
-      if (mDirects.has(roomId)) {
-        navigate(getDirectRoomPath(roomIdOrAlias, eventId), opts);
-        return;
-      }
-
       navigate(getHomeRoomPath(roomIdOrAlias, eventId), opts);
     },
-    [mx, navigate, spaceSelectedId, roomToParents, mDirects, developerTools]
+    [
+      mx,
+      navigate,
+      location.pathname,
+      selectedRoomId,
+      spaceSelectedId,
+      roomToParents,
+      mDirects,
+      developerTools,
+    ]
   );
 
   return {

src/app/hooks/useRoomUploadFiles.ts

@@ -0,0 +1,60 @@
+import { useCallback } from 'react';
+import { useSetAtom } from 'jotai';
+import { Room } from 'matrix-js-sdk';
+import {
+  roomIdToUploadItemsAtomFamily,
+  TUploadItem,
+} from '../state/room/roomInputDrafts';
+import { encryptFile } from '../utils/matrix';
+import { safeFile } from '../utils/mimeTypes';
+import { fulfilledPromiseSettledResult } from '../utils/common';
+import { useFilePicker } from './useFilePicker';
+
+/**
+ * Enqueues files into the room composer upload board (shared by RoomInput and header media).
+ */
+export const useRoomUploadFiles = (room: Room) => {
+  const setSelectedFiles = useSetAtom(roomIdToUploadItemsAtomFamily(room.roomId));
+
+  const handleFiles = useCallback(
+    async (files: File[]) => {
+      const safeFiles = files.map(safeFile);
+      const fileItems: TUploadItem[] = [];
+
+      if (room.hasEncryptionStateEvent()) {
+        const encryptFiles = fulfilledPromiseSettledResult(
+          await Promise.allSettled(safeFiles.map((f) => encryptFile(f)))
+        );
+        encryptFiles.forEach((ef) =>
+          fileItems.push({
+            ...ef,
+            metadata: {
+              markedAsSpoiler: false,
+            },
+          })
+        );
+      } else {
+        safeFiles.forEach((f) =>
+          fileItems.push({
+            file: f,
+            originalFile: f,
+            encInfo: undefined,
+            metadata: {
+              markedAsSpoiler: false,
+            },
+          })
+        );
+      }
+
+      setSelectedFiles({
+        type: 'PUT',
+        item: fileItems,
+      });
+    },
+    [setSelectedFiles, room]
+  );
+
+  const pickFiles = useFilePicker(handleFiles, true);
+
+  return { handleFiles, pickFiles };
+};

src/app/hooks/useTheme.ts

@@ -1,4 +1,5 @@
 import { lightTheme } from 'folds';
+import { atom, useAtomValue } from 'jotai';
 import { createContext, useContext, useEffect, useMemo, useState } from 'react';
 import { onDarkFontWeight, onLightFontWeight } from '../../config.css';
 import { butterTheme, catppuccinMochaTheme, darkTheme, discordTheme, discordDarkerTheme, mochaTheme, silverTheme, stationeryDarkTheme, stationeryTheme, twilightTheme } from '../../colors.css';
@@ -6,6 +7,9 @@ import { settingsAtom } from '../state/settings';
 import { useSetting } from '../state/hooks/settings';
 import { pluginRegistry } from '../features/settings/plugins/PluginAPI';
 
+/** Ephemeral theme id while hovering theme options in settings (not persisted). */
+export const themePreviewIdAtom = atom<string | undefined>(undefined);
+
 export enum ThemeKind {
   Light = 'light',
   Dark = 'dark',
@@ -190,6 +194,16 @@ export const useActiveTheme = (): Theme => {
   return selectedTheme;
 };
 
+/** Active theme, or hover-preview theme when browsing the theme menu. */
+export const useDisplayTheme = (): Theme => {
+  const activeTheme = useActiveTheme();
+  const themes = useThemes();
+  const previewId = useAtomValue(themePreviewIdAtom);
+
+  if (!previewId) return activeTheme;
+  return themes.find((theme) => theme.id === previewId) ?? activeTheme;
+};
+
 const ThemeContext = createContext<Theme | null>(null);
 export const ThemeContextProvider = ThemeContext.Provider;
 

src/app/hooks/useUserBanner.ts

@@ -12,6 +12,8 @@ import {
   getMimeType,
   getExtension,
   ImageMetadata,
+  convertImageDataToPng,
+  uint8ArrayToBlob,
 } from '../utils/imageMetadata';
 
 /**
@@ -137,27 +139,39 @@ export function useUserBanner(): [
       throw new Error('Failed to fetch current avatar');
     }
 
-    // Detect image format
+    // Detect image format — banner lives in PNG tEXt, so convert other formats first
-    const format = detectImageFormat(avatarData);
+    let workingData: ArrayBuffer | Uint8Array = avatarData;
+    let format = detectImageFormat(workingData);
 
     if (format === 'unknown') {
       throw new Error('Unsupported avatar image format');
     }
 
+    if (format !== 'png') {
+      console.log('[updateBanner] Converting', format, 'avatar to PNG for banner metadata');
+      const pngData = await convertImageDataToPng(workingData);
+      if (!pngData) {
+        throw new Error('Failed to convert avatar to PNG for banner metadata');
+      }
+      workingData = pngData;
+      format = 'png';
+    }
+
     // Get existing metadata to preserve
-    const existingMetadata = extractMetadataFromImage(avatarData);
+    const existingMetadata = extractMetadataFromImage(workingData);
     console.log('[updateBanner] Existing metadata:', existingMetadata);
 
-    // Modify image metadata with new banner, preserving color
+    // Modify image metadata with new banner, preserving color.
+    // Empty string clears banner (PNG embed drops falsy fields after stripping old chunks).
     const newMetadata: ImageMetadata = {
       color: existingMetadata.color,
-      banner: newBanner,
+      banner: newBanner ?? '',
       avatarBorderColor: existingMetadata.avatarBorderColor,
       gradient: existingMetadata.gradient,
     };
     console.log('[updateBanner] New metadata to embed:', newMetadata);
 
-    const newAvatarData = embedMetadataInImage(avatarData, newMetadata);
+    const newAvatarData = embedMetadataInImage(workingData, newMetadata);
 
     if (!newAvatarData) {
       throw new Error('Failed to embed banner in avatar metadata');
@@ -167,7 +181,7 @@ export function useUserBanner(): [
     const verifyMetadata = extractMetadataFromImage(newAvatarData);
     console.log('[updateBanner] Verification - extracted metadata from new avatar:', verifyMetadata);
 
-    if (newBanner && verifyMetadata.banner !== newBanner) {
+    if ((newBanner || undefined) !== verifyMetadata.banner) {
       console.error('[updateBanner] Banner verification FAILED!', 'Expected:', newBanner, 'Got:', verifyMetadata.banner);
       throw new Error('Banner verification failed');
     }
@@ -176,7 +190,7 @@ export function useUserBanner(): [
     // Upload modified avatar with correct MIME type
     const mimeType = getMimeType(format);
     const extension = getExtension(format);
-    const blob = new Blob([newAvatarData], { type: mimeType });
+    const blob = uint8ArrayToBlob(newAvatarData, mimeType);
 
     const uploadResponse = await mx.uploadContent(blob, {
       name: `avatar.${extension}`,

src/app/hooks/useUserColor.ts

@@ -12,6 +12,7 @@ import {
   detectImageFormat,
   getMimeType,
   getExtension,
+  uint8ArrayToBlob,
 } from '../utils/imageMetadata';
 
 /**
@@ -176,7 +177,7 @@ export function useUserColor(): [
       // Upload modified avatar with correct MIME type
       const mimeType = getMimeType(format);
       const extension = getExtension(format);
-      const blob = new Blob([newAvatarData], { type: mimeType });
+      const blob = uint8ArrayToBlob(newAvatarData, mimeType);
       const uploadResponse = await mx.uploadContent(blob, {
         name: `avatar.${extension}`,
         type: mimeType,

src/app/hooks/useUserProfileStyle.ts

@@ -11,6 +11,8 @@ import { mxcUrlToHttp } from '../utils/matrix';import { getCurrentAccessToken }
   getExtension,
   ImageMetadata,
   ProfileGradient,
+  convertImageDataToPng,
+  uint8ArrayToBlob,
 } from '../utils/imageMetadata';
 
 /**
@@ -142,14 +144,24 @@ export function useUserProfileStyle(): [
         throw new Error('Failed to fetch current avatar');
       }
 
-      // Detect image format
+      // Border/gradient live in PNG tEXt — convert other formats first
-      const format = detectImageFormat(avatarData);
+      let workingData: ArrayBuffer | Uint8Array = avatarData;
+      let format = detectImageFormat(workingData);
       if (format === 'unknown') {
         throw new Error('Unsupported avatar image format');
       }
 
+      if (format !== 'png') {
+        const pngData = await convertImageDataToPng(workingData);
+        if (!pngData) {
+          throw new Error('Failed to convert avatar to PNG for style metadata');
+        }
+        workingData = pngData;
+        format = 'png';
+      }
+
       // Get existing metadata to preserve
-      const existingMetadata = extractMetadataFromImage(avatarData);
+      const existingMetadata = extractMetadataFromImage(workingData);
 
       // Merge with new style
       const newMetadata: ImageMetadata = {
@@ -159,7 +171,7 @@ export function useUserProfileStyle(): [
       };
 
       // Embed updated metadata
-      const newAvatarData = embedMetadataInImage(avatarData, newMetadata);
+      const newAvatarData = embedMetadataInImage(workingData, newMetadata);
       if (!newAvatarData) {
         throw new Error('Failed to embed style in avatar metadata');
       }
@@ -167,7 +179,7 @@ export function useUserProfileStyle(): [
       // Upload modified avatar with correct MIME type
       const mimeType = getMimeType(format);
       const extension = getExtension(format);
-      const blob = new Blob([newAvatarData], { type: mimeType });
+      const blob = uint8ArrayToBlob(newAvatarData, mimeType);
 
       const uploadResponse = await mx.uploadContent(blob, {
         name: `avatar.${extension}`,

src/app/pages/Router.tsx

@@ -41,7 +41,7 @@ import {
 } from './pathUtils';
 import { ClientBindAtoms, ClientLayout, ClientRoot } from './client';
 import { Home, HomeRouteRoomProvider, HomeSearch } from './client/home';
-import { Direct, DirectCreate, DirectRouteRoomProvider } from './client/direct';
+import { Direct, DirectCreate, DirectRouteRoomProvider, DirectSearch } from './client/direct';
 import { RouteSpaceProvider, SpaceRouteRoomProvider, SpaceSearch, SpaceIndexRedirect } from './client/space';
 import { ForumAwareSpaceLayout } from '../features/forum/ForumAwareSpaceLayout';
 import { ForumFeedPage } from '../features/forum/ForumFeedPage';
@@ -223,6 +223,7 @@ export const createRouter = (clientConfig: ClientConfig, screenSize: ScreenSize)
         >
           {mobile ? null : <Route index element={<WelcomePage />} />}
           <Route path={_CREATE_PATH} element={<DirectCreate />} />
+          <Route path={_SEARCH_PATH} element={<DirectSearch />} />
           <Route path={_NOTIFICATIONS_PATH} element={<Notifications />} />
           <Route path={_INVITES_PATH} element={<Invites />} />
           <Route

src/app/pages/ThemeManager.tsx

@@ -5,7 +5,7 @@ import {
   LightTheme,
   ThemeContextProvider,
   ThemeKind,
-  useActiveTheme,
+  useDisplayTheme,
   useSystemThemeKind,
 } from '../hooks/useTheme';
 import { useSetting } from '../state/hooks/settings';
@@ -29,21 +29,21 @@ export function UnAuthRouteThemeManager() {
 }
 
 export function AuthRouteThemeManager({ children }: { children: ReactNode }) {
-  const activeTheme = useActiveTheme();
+  const displayTheme = useDisplayTheme();
   const [monochromeMode] = useSetting(settingsAtom, 'monochromeMode');
 
   useEffect(() => {
     document.body.className = '';
     document.body.classList.add(configClass, varsClass);
 
-    document.body.classList.add(...activeTheme.classNames);
+    document.body.classList.add(...displayTheme.classNames);
 
     if (monochromeMode) {
       document.body.style.filter = 'grayscale(1)';
     } else {
       document.body.style.filter = '';
     }
-  }, [activeTheme, monochromeMode]);
+  }, [displayTheme, monochromeMode]);
 
-  return <ThemeContextProvider value={activeTheme}>{children}</ThemeContextProvider>;
+  return <ThemeContextProvider value={displayTheme}>{children}</ThemeContextProvider>;
 }

src/app/pages/client/ClientNonUIFeatures.tsx

@@ -378,6 +378,14 @@ function MessageNotifications() {
         return;
       }
 
+      // Match TitleBar / room bell settings: Default and Mentions rooms only notify on highlights.
+      const notificationType = getNotificationType(mx, room.roomId);
+      const isDm = mDirects.has(room.roomId);
+      const mentionsOnly =
+        notificationType === NotificationType.MentionsAndKeywords ||
+        (notificationType === NotificationType.Default && !isDm);
+      if (mentionsOnly && unreadInfo.highlight === 0) return;
+
       if (
         showNotifications &&
         ((isTauri() && !isElectron()) || isCapacitorNative() || notificationPermission('granted'))
@@ -399,7 +407,6 @@ function MessageNotifications() {
           messageBody = typeof content.body === 'string' ? content.body : undefined;
         }
         
-        const isDm = room.getJoinedMemberCount() === 2 && !room.isSpaceRoom();
         notify({
           roomName: room.name ?? 'Unknown',
           roomAvatar: avatarMxc
@@ -430,6 +437,7 @@ function MessageNotifications() {
     notify,
     selectedRoomId,
     useAuthentication,
+    mDirects,
   ]);
 
   return null;

src/app/pages/client/direct/Direct.tsx

@@ -17,7 +17,7 @@ import {
   NavItemContent,
   NavLink,
 } from '../../../components/nav';
-import { getDirectCreatePath, getDirectRoomPath, getDirectNotificationsPath, getDirectInvitesPath } from '../../pathUtils';
+import { getDirectCreatePath, getDirectRoomPath, getDirectNotificationsPath, getDirectInvitesPath, getDirectSearchPath } from '../../pathUtils';
 import { getCanonicalAliasOrRoomId } from '../../../utils/matrix';
 import { useSelectedRoom } from '../../../hooks/router/useSelectedRoom';
 import { VirtualTile } from '../../../components/virtualizer';
@@ -41,10 +41,9 @@ import {
   getRoomNotificationMode,
   useRoomsNotificationPreferencesContext,
 } from '../../../hooks/useRoomsNotificationPreferences';
-import { useDirectCreateSelected } from '../../../hooks/router/useDirectSelected';
+import { useDirectCreateSelected, useDirectSearchSelected } from '../../../hooks/router/useDirectSelected';
 import { allInvitesAtom } from '../../../state/room-list/inviteList';
 import { UnreadBadge } from '../../../components/unread-badge'; 
- 
 type DirectMenuProps = {
   requestClose: () => void;
 };
@@ -228,6 +227,7 @@ export function Direct() {
   const navigate = useNavigate();
 
   const createDirectSelected = useDirectCreateSelected();
+  const searchSelected = useDirectSearchSelected();
 
   const selectedRoomId = useSelectedRoom();
   const noRoomToDisplay = directs.length === 0;
@@ -283,6 +283,22 @@ export function Direct() {
                 </NavButton>
               </NavItem>
               <PluginNavSlot location="direct-messages" />
+              <NavItem variant="Background" radii="400" aria-selected={searchSelected}>
+                <NavLink to={getDirectSearchPath()}>
+                  <NavItemContent>
+                    <Box as="span" grow="Yes" alignItems="Center" gap="200">
+                      <Avatar size="200" radii="400">
+                        <Icon src={Icons.Search} size="100" filled={searchSelected} />
+                      </Avatar>
+                      <Box as="span" grow="Yes">
+                        <Text as="span" size="Inherit" truncate>
+                          Message Search
+                        </Text>
+                      </Box>
+                    </Box>
+                  </NavItemContent>
+                </NavLink>
+              </NavItem>
             </NavCategory>
             <NavCategory>
               <NotificationsNavItem />

src/app/pages/client/direct/RoomProvider.tsx

@@ -1,15 +1,19 @@
 import React, { ReactNode } from 'react';
 import { useParams } from 'react-router-dom';
+import { useAtomValue } from 'jotai';
 import { decodeRouteParam } from '../../pathUtils';
 import { useSelectedRoom } from '../../../hooks/router/useSelectedRoom';
 import { IsDirectRoomProvider, RoomProvider } from '../../../hooks/useRoom';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
 import { JoinBeforeNavigate } from '../../../features/join-before-navigate';
 import { useDirectRooms } from './useDirectRooms';
+import { mDirectAtom } from '../../../state/mDirectList';
+import { Membership } from '../../../../types/matrix/room';
 
 export function DirectRouteRoomProvider({ children }: { children: ReactNode }) {
   const mx = useMatrixClient();
   const rooms = useDirectRooms();
+  const mDirects = useAtomValue(mDirectAtom);
 
   const { roomIdOrAlias: rawRoomIdOrAlias, eventId: rawEventId } = useParams();
   const roomIdOrAlias = decodeRouteParam(rawRoomIdOrAlias);
@@ -17,7 +21,13 @@ export function DirectRouteRoomProvider({ children }: { children: ReactNode }) {
   const roomId = useSelectedRoom();
   const room = mx.getRoom(roomId);
 
-  if (!room || !rooms.includes(room.roomId)) {
+  // useDirectRooms can lag m.direct / allRooms during catch-up; allow joined m.direct rooms.
+  const isJoinedDirect =
+    Boolean(room) &&
+    room!.getMyMembership() === Membership.Join &&
+    (rooms.includes(room!.roomId) || mDirects.has(room!.roomId));
+
+  if (!room || !isJoinedDirect) {
     return (
       <JoinBeforeNavigate
         roomIdOrAlias={roomIdOrAlias ?? rawRoomIdOrAlias!}

src/app/pages/client/direct/Search.tsx

@@ -0,0 +1,55 @@
+import React, { useRef } from 'react';
+import { Box, Text, Scroll, IconButton } from 'folds';
+import { Icon, Icons } from '../../../components/icons';
+import { Page, PageContent, PageContentCenter, PageHeader } from '../../../components/page';
+import { MessageSearch } from '../../../features/message-search';
+import { useDirectRooms } from './useDirectRooms';
+import { ScreenSize, useScreenSizeContext } from '../../../hooks/useScreenSize';
+import { BackRouteHandler } from '../../../components/BackRouteHandler';
+
+export function DirectSearch() {
+  const scrollRef = useRef<HTMLDivElement>(null);
+  const rooms = useDirectRooms();
+  const screenSize = useScreenSizeContext();
+
+  return (
+    <Page>
+      <PageHeader balance>
+        <Box grow="Yes" alignItems="Center" gap="200">
+          <Box grow="Yes" basis="No">
+            {screenSize === ScreenSize.Mobile && (
+              <BackRouteHandler>
+                {(onBack) => (
+                  <IconButton onClick={onBack}>
+                    <Icon src={Icons.ArrowLeft} />
+                  </IconButton>
+                )}
+              </BackRouteHandler>
+            )}
+          </Box>
+          <Box justifyContent="Center" alignItems="Center" gap="200">
+            {screenSize !== ScreenSize.Mobile && <Icon size="400" src={Icons.Search} />}
+            <Text size="H3" truncate>
+              Message Search
+            </Text>
+          </Box>
+          <Box grow="Yes" basis="No" />
+        </Box>
+      </PageHeader>
+      <Box style={{ position: 'relative' }} grow="Yes">
+        <Scroll ref={scrollRef} hideTrack visibility="Hover">
+          <PageContent>
+            <PageContentCenter>
+              <MessageSearch
+                defaultRoomsFilterName="Direct Messages"
+                allowGlobal
+                rooms={rooms}
+                scrollRef={scrollRef}
+              />
+            </PageContentCenter>
+          </PageContent>
+        </Scroll>
+      </Box>
+    </Page>
+  );
+}

src/app/pages/client/direct/index.ts

@@ -1,3 +1,4 @@
 export * from './Direct';
 export * from './RoomProvider';
 export * from './DirectCreate';
+export * from './Search';

src/app/pages/client/space/RoomProvider.tsx

@@ -1,4 +1,4 @@
-import React, { ReactNode } from 'react';
+import React, { ReactNode, useEffect } from 'react';
 import { useParams } from 'react-router-dom';
 import { useAtom, useAtomValue } from 'jotai';
 import { decodeRouteParam } from '../../pathUtils';
@@ -30,7 +30,31 @@ export function SpaceRouteRoomProvider({ children }: { children: ReactNode }) {
   const roomId = useSelectedRoom();
   const room = mx.getRoom(roomId);
 
-  if (!room || !allRooms.includes(room.roomId)) {
+  const isJoined = Boolean(room && allRooms.includes(room.roomId));
+  const isSpaceChild = Boolean(room && getSpaceChildren(space).includes(room.roomId));
+  const hasParentMapping = Boolean(
+    room && getAllParents(roomToParents, room.roomId).has(space.roomId)
+  );
+
+  // roomToParents can lag behind live space state during catch-up sync.
+  // If the room is clearly a child of this space, backfill the map and open it.
+  useEffect(() => {
+    if (!room || !isJoined || hasParentMapping || !isSpaceChild) return;
+    setRoomToParents({
+      type: 'PUT',
+      parent: space.roomId,
+      children: [room.roomId],
+    });
+  }, [
+    room,
+    isJoined,
+    hasParentMapping,
+    isSpaceChild,
+    space.roomId,
+    setRoomToParents,
+  ]);
+
+  if (!room || !isJoined) {
     // room is not joined
     return (
       <JoinBeforeNavigate
@@ -50,16 +74,7 @@ export function SpaceRouteRoomProvider({ children }: { children: ReactNode }) {
     );
   }
 
-  if (!getAllParents(roomToParents, room.roomId).has(space.roomId)) {
+  if (!hasParentMapping && !isSpaceChild) {
-    if (getSpaceChildren(space).includes(room.roomId)) {
-      // fill missing roomToParent mapping
-      setRoomToParents({
-        type: 'PUT',
-        parent: space.roomId,
-        children: [room.roomId],
-      });
-    }
-
     return (
       <JoinBeforeNavigate
         roomIdOrAlias={roomIdOrAlias ?? rawRoomIdOrAlias!}

src/app/pages/pathUtils.ts

@@ -3,6 +3,7 @@ import {
   DIRECT_CREATE_PATH,
   DIRECT_PATH,
   DIRECT_ROOM_PATH,
+  DIRECT_SEARCH_PATH,
   DIRECT_NOTIFICATIONS_PATH,
   DIRECT_INVITES_PATH,
   EXPLORE_FEATURED_PATH,
@@ -121,6 +122,7 @@ export const getHomeRoomPath = (roomIdOrAlias: string, eventId?: string): string
 
 export const getDirectPath = (): string => DIRECT_PATH;
 export const getDirectCreatePath = (): string => DIRECT_CREATE_PATH;
+export const getDirectSearchPath = (): string => DIRECT_SEARCH_PATH;
 export const getDirectRoomPath = (roomIdOrAlias: string, eventId?: string): string => {
   const params = {
     roomIdOrAlias,
@@ -180,6 +182,28 @@ export const getSpaceRoomPath = (
   return generatePath(SPACE_ROOM_PATH, params);
 };
 
+/**
+ * Keep the current room URL (home / direct / space) and only add, replace, or clear
+ * the optional `$eventId` segment. Used so same-room jumps (media, permalinks) don't
+ * re-home the room into a different sidebar section.
+ */
+export const withRoomEventId = (pathname: string, eventId?: string): string => {
+  const parts = pathname.split('/').filter(Boolean);
+
+  if (parts.length > 0) {
+    const lastDecoded = decodeRouteParam(parts[parts.length - 1]);
+    if (lastDecoded?.startsWith('$')) {
+      parts.pop();
+    }
+  }
+
+  if (eventId) {
+    parts.push(encodeURIComponent(eventId));
+  }
+
+  return `/${parts.join('/')}/`;
+};
+
 export const getExplorePath = (): string => EXPLORE_PATH;
 export const getExploreFeaturedPath = (): string => EXPLORE_FEATURED_PATH;
 export const getExploreServerPath = (server: string): string => {

src/app/pages/paths.ts

@@ -54,6 +54,7 @@ export type DirectCreateSearchParams = {
   userId?: string;
 };
 export const DIRECT_CREATE_PATH = `/direct/${_CREATE_PATH}`;
+export const DIRECT_SEARCH_PATH = `/direct/${_SEARCH_PATH}`;
 export const DIRECT_ROOM_PATH = `/direct/${_ROOM_PATH}`;
 
 export const SPACE_PATH = '/:spaceIdOrAlias/';

src/app/plugins/react-custom-html-parser.tsx

@@ -188,7 +188,7 @@ export const scaleSystemEmoji = (text: string): (string | JSX.Element)[] =>
     text,
     EMOJI_REG_G,
     (match, pushIndex) => (
-      <span key={`scaleSystemEmoji-${pushIndex}`} className={css.EmoticonBase}>
+      <span key={`scaleSystemEmoji-${pushIndex}`} className={css.EmoticonBase} data-emoticon={match[0]}>
         <span className={css.Emoticon()} title={getShortcodeFor(getHexcodeForEmoji(match[0]))}>
           {match[0]}
         </span>
@@ -551,8 +551,15 @@ export const getReactCustomHtmlParser = (
             );
           }
           if (htmlSrc && 'data-mx-emoticon' in props) {
+            const emoticonLabel =
+              (typeof props.alt === 'string' && props.alt) ||
+              (typeof props.title === 'string' && props.title) ||
+              undefined;
             return (
-              <span className={css.EmoticonBase}>
+              <span
+                className={css.EmoticonBase}
+                {...(emoticonLabel ? { 'data-emoticon': emoticonLabel } : {})}
+              >
                 <span className={css.Emoticon()}>
                   <AuthenticatedImg {...props} className={css.EmoticonImg} src={htmlSrc} />
                 </span>

src/app/state/mediaDrawer.ts

@@ -0,0 +1,17 @@
+import { atom } from 'jotai';
+
+/** Session flag for the Shared Media side drawer (mutually exclusive with Members). */
+export const isMediaDrawerAtom = atom(false);
+
+const scrollTops = new Map<string, number>();
+
+export const getMediaDrawerScrollTop = (roomId: string): number | undefined =>
+  scrollTops.get(roomId);
+
+export const setMediaDrawerScrollTop = (roomId: string, top: number): void => {
+  scrollTops.set(roomId, top);
+};
+
+export const clearMediaDrawerScrollTop = (roomId: string): void => {
+  scrollTops.delete(roomId);
+};

src/app/state/room/roomToParents.ts

@@ -103,6 +103,23 @@ export const useBindRoomToParentsAtom = (
             setRoomToParents({ type: 'DELETE', roomId: childId });
           }
         }
+        return;
+      }
+
+      // Create type can arrive after the room is already in the store. Without this,
+      // spaces are skipped on INITIALIZE (isSpace false) and children stay unmapped
+      // until an unrelated SpaceChild event fires — DMs/channels look listed but
+      // SpaceRouteRoomProvider blocks on missing roomToParents.
+      if (mEvent.getType() === StateEvent.RoomCreate) {
+        const roomId = mEvent.getRoomId();
+        const room = roomId ? mx.getRoom(roomId) : null;
+        if (room && isSpace(room) && room.getMyMembership() !== Membership.Invite) {
+          setRoomToParents({
+            type: 'PUT',
+            parent: room.roomId,
+            children: getSpaceChildren(room),
+          });
+        }
       }
     };
 

src/app/state/roomScrollCache.ts

@@ -30,3 +30,17 @@ export const saveRoomScrollState = (roomId: string, state: RoomScrollState): voi
 export const clearRoomScrollState = (roomId: string): void => {
   cache.delete(roomId);
 };
+
+/** Survives RoomTimeline remounts (e.g. clearing an event permalink URL). */
+const returnAnchors = new Map<string, string>();
+
+export const getRoomReturnAnchor = (roomId: string): string | undefined =>
+  returnAnchors.get(roomId);
+
+export const setRoomReturnAnchor = (roomId: string, eventId: string): void => {
+  returnAnchors.set(roomId, eventId);
+};
+
+export const clearRoomReturnAnchor = (roomId: string): void => {
+  returnAnchors.delete(roomId);
+};

src/app/utils/backgroundSync.ts

@@ -15,6 +15,9 @@ type UnifiedPushStatus = {
   registered: boolean;
   distributor: string;
   distributors: string[] | string;
+  lastFailure?: string;
+  /** OEM App Boot / AUTO_START is blocking distributor broadcasts (e.g. TCL). */
+  autoStartBlocked?: boolean;
 };
 
 type UnifiedPushEndpointEvent = {
@@ -55,6 +58,8 @@ interface MatrixBackgroundSyncPlugin {
   setAppForeground(options: { foreground: boolean }): Promise<void>;
   /** Returns fetch state and current UnifiedPush registration details. */
   getStatus(): Promise<UnifiedPushStatus>;
+  /** Native Matrix gateway discovery for a UnifiedPush endpoint (avoids WebView CORS). */
+  resolveUnifiedPushGateway(options: { endpoint: string }): Promise<{ gatewayUrl: string }>;
   addListener(
     eventName: 'unifiedPushNewEndpoint',
     listenerFunc: (event: UnifiedPushEndpointEvent) => void
@@ -141,6 +146,17 @@ const normalizeDistributors = (raw: UnifiedPushStatus['distributors']): string[]
 };
 
 const resolveUnifiedPushGateway = async (endpoint: string): Promise<string> => {
+  // Prefer native HTTP — ntfy/Matrix gateway responses omit CORS headers, so
+  // WebView fetch fails with TypeError: Failed to fetch and wrongly falls back.
+  try {
+    const { registerPlugin } = await loadCapacitorCore();
+    const MatrixBackgroundSync = registerPlugin<MatrixBackgroundSyncPlugin>('MatrixBackgroundSync');
+    const result = await MatrixBackgroundSync.resolveUnifiedPushGateway({ endpoint });
+    if (result?.gatewayUrl) return result.gatewayUrl;
+  } catch (err) {
+    console.warn('[BackgroundSync] Native UnifiedPush gateway discovery failed:', err);
+  }
+
   try {
     const discoveryUrl = new URL(endpoint);
     discoveryUrl.pathname = '/_matrix/push/v1/notify';
@@ -529,7 +545,23 @@ export const requestResetPushRegistration = async (): Promise<{ success: boolean
     const MatrixBackgroundSync = registerPlugin<MatrixBackgroundSyncPlugin>('MatrixBackgroundSync');
     const result = await MatrixBackgroundSync.requestDistributorSetup();
     console.log('[BackgroundSync] requestDistributorSetup completed:', result);
-    return result ?? { success: false };
+    if (!result?.success) return { success: false };
+
+    // Endpoint arrives asynchronously from the distributor after register().
+    for (let i = 0; i < 40; i += 1) {
+      await new Promise((resolve) => setTimeout(resolve, 250));
+      const status = await getBackgroundSyncStatus();
+      if (status?.registered && status.endpoint) {
+        return { success: true };
+      }
+      if (status?.lastFailure) {
+        console.warn('[BackgroundSync] Registration failed while waiting:', status.lastFailure);
+        return { success: false };
+      }
+    }
+
+    console.warn('[BackgroundSync] Distributor selected but no endpoint received in time');
+    return { success: false };
   } catch (err) {
     console.error('[BackgroundSync] requestDistributorSetup failed:', err);
     return { success: false };

src/app/utils/imageMetadata.ts

@@ -258,6 +258,59 @@ export function embedColorInImage(imageData: ArrayBuffer | Uint8Array, color: st
   }
 }
 
+/**
+ * True when metadata includes fields that only PNG tEXt chunks can store.
+ */
+export function needsPngForMetadata(metadata: ImageMetadata): boolean {
+  return Boolean(metadata.banner || metadata.avatarBorderColor || metadata.gradient);
+}
+
+/**
+ * Convert image data to PNG via canvas (needed for banner/border/gradient metadata).
+ */
+export async function convertImageDataToPng(
+  imageData: ArrayBuffer | Uint8Array
+): Promise<Uint8Array | null> {
+  const bytes = imageData instanceof Uint8Array ? imageData : new Uint8Array(imageData);
+  const format = detectImageFormat(bytes);
+  if (format === 'png') return bytes;
+  if (format === 'unknown') return null;
+
+  try {
+    const blob = uint8ArrayToBlob(bytes, getMimeType(format));
+    const bitmap = await createImageBitmap(blob);
+    try {
+      const canvas = document.createElement('canvas');
+      canvas.width = bitmap.width;
+      canvas.height = bitmap.height;
+      const ctx = canvas.getContext('2d');
+      if (!ctx) return null;
+      ctx.drawImage(bitmap, 0, 0);
+
+      const pngBlob = await new Promise<Blob | null>((resolve) => {
+        canvas.toBlob(resolve, 'image/png');
+      });
+      if (!pngBlob) return null;
+      return new Uint8Array(await pngBlob.arrayBuffer());
+    } finally {
+      bitmap.close();
+    }
+  } catch (error) {
+    console.error('[convertImageDataToPng] Conversion failed:', error);
+    return null;
+  }
+}
+
+/**
+ * Build a Blob from Uint8Array without relying on BufferSource/BlobPart quirks
+ * across TS DOM lib / Electron versions (avoids SharedArrayBuffer typing issues).
+ */
+export function uint8ArrayToBlob(data: Uint8Array, type: string): Blob {
+  const copy = new ArrayBuffer(data.byteLength);
+  new Uint8Array(copy).set(data);
+  return new Blob([copy], { type });
+}
+
 /**
  * Embed paarrot metadata (color and/or banner) into image data
  * Preserves existing metadata that is not being updated
@@ -270,18 +323,27 @@ export function embedMetadataInImage(
   metadata: ImageMetadata
 ): Uint8Array | null {
   const format = detectImageFormat(imageData);
+  const bytes = imageData instanceof Uint8Array ? imageData : new Uint8Array(imageData);
 
   switch (format) {
     case 'png':
       return embedMetadataInPNG(imageData, metadata);
-    // For other formats, only embed color for now
+    // Non-PNG: color via format-specific chunks; banner/border/gradient need PNG (convert first)
     case 'webp':
     case 'jpeg':
     case 'gif':
+      if (needsPngForMetadata(metadata)) {
+        console.warn(
+          '[embedMetadataInImage] Banner/border/gradient require PNG; convert with convertImageDataToPng first. Got:',
+          format
+        );
+        return null;
+      }
       if (metadata.color) {
         return embedColorInImage(imageData, metadata.color);
       }
-      return null;
+      // Supported format with nothing to embed — succeed as a no-op so avatar upload isn't blocked
+      return bytes;
     default:
       console.warn('[embedMetadataInImage] Unknown image format, cannot embed metadata');
       return null;

src/index.css

@@ -259,24 +259,35 @@ body.stationery-dark-theme {
   transition: width 0.2s ease;
 }
 
-/* Scrollbar styling */
+/* Scrollbar styling — transparent until hover so Folds Hover/hideTrack
+   scroll areas (e.g. message composer) don't show a permanent side bar */
 .twilight-theme ::-webkit-scrollbar {
   width: 10px;
   height: 10px;
 }
 
 .twilight-theme ::-webkit-scrollbar-track {
-  background: rgba(20, 18, 31, 0.5);
+  background: transparent;
 }
 
 .twilight-theme ::-webkit-scrollbar-thumb {
-  background: linear-gradient(180deg, #3E3A6A 0%, #565096 100%);
+  background: transparent;
   border-radius: 5px;
-  border: 2px solid rgba(20, 18, 31, 0.5);
+  border: 2px solid transparent;
-  transition: background 0.2s ease;
+  background-clip: padding-box;
+  transition: background 0.2s ease, border-color 0.2s ease;
 }
 
-.twilight-theme ::-webkit-scrollbar-thumb:hover {
+.twilight-theme *:hover::-webkit-scrollbar-track {
+  background: rgba(20, 18, 31, 0.5);
+}
+
+.twilight-theme *:hover::-webkit-scrollbar-thumb {
+  background: linear-gradient(180deg, #3E3A6A 0%, #565096 100%);
+  border-color: rgba(20, 18, 31, 0.5);
+}
+
+.twilight-theme *:hover::-webkit-scrollbar-thumb:hover {
   background: linear-gradient(180deg, #4A4580 0%, #625BAC 100%);
 }
 
@@ -357,24 +368,34 @@ body.stationery-dark-theme {
   transition: width 0.2s ease;
 }
 
-/* Scrollbar styling */
+/* Scrollbar styling — transparent until hover (see twilight note above) */
 .mocha-theme ::-webkit-scrollbar {
   width: 10px;
   height: 10px;
 }
 
 .mocha-theme ::-webkit-scrollbar-track {
-  background: rgba(26, 22, 20, 0.5);
+  background: transparent;
 }
 
 .mocha-theme ::-webkit-scrollbar-thumb {
-  background: linear-gradient(180deg, #54493F 0%, #706151 100%);
+  background: transparent;
   border-radius: 5px;
-  border: 2px solid rgba(26, 22, 20, 0.5);
+  border: 2px solid transparent;
-  transition: background 0.2s ease;
+  background-clip: padding-box;
+  transition: background 0.2s ease, border-color 0.2s ease;
 }
 
-.mocha-theme ::-webkit-scrollbar-thumb:hover {
+.mocha-theme *:hover::-webkit-scrollbar-track {
+  background: rgba(26, 22, 20, 0.5);
+}
+
+.mocha-theme *:hover::-webkit-scrollbar-thumb {
+  background: linear-gradient(180deg, #54493F 0%, #706151 100%);
+  border-color: rgba(26, 22, 20, 0.5);
+}
+
+.mocha-theme *:hover::-webkit-scrollbar-thumb:hover {
   background: linear-gradient(180deg, #625548 0%, #7E6D5A 100%);
 }
 
@@ -866,6 +887,12 @@ body.stationery-dark-theme {
   width: calc(100% + 25px) !important;
   max-width: none !important;
   box-sizing: border-box !important;
+  /* Gutter is only for post-it overflow paint — do not steal clicks from page-nav */
+  pointer-events: none;
+}
+
+.stationery [data-sidebar-scroll] > * {
+  pointer-events: auto;
 }
 
 .stationery [data-sidebar] > *,
@@ -1762,16 +1789,26 @@ body.stationery-dark-theme {
 }
 
 .stationery ::-webkit-scrollbar-track {
-  background: color-mix(in srgb, var(--manila) 45%, transparent);
+  background: transparent;
 }
 
 .stationery ::-webkit-scrollbar-thumb {
-  background: linear-gradient(180deg, var(--manila-deep) 0%, var(--manila-edge) 100%);
+  background: transparent;
   border-radius: 2px;
-  border: 2px solid color-mix(in srgb, var(--manila) 45%, transparent);
+  border: 2px solid transparent;
+  background-clip: padding-box;
 }
 
-.stationery ::-webkit-scrollbar-thumb:hover {
+.stationery *:hover::-webkit-scrollbar-track {
+  background: color-mix(in srgb, var(--manila) 45%, transparent);
+}
+
+.stationery *:hover::-webkit-scrollbar-thumb {
+  background: linear-gradient(180deg, var(--manila-deep) 0%, var(--manila-edge) 100%);
+  border-color: color-mix(in srgb, var(--manila) 45%, transparent);
+}
+
+.stationery *:hover::-webkit-scrollbar-thumb:hover {
   background: linear-gradient(180deg, var(--manila-edge) 0%, var(--manila-dark) 100%);
 }
 

src/playground/App.tsx

@@ -0,0 +1,365 @@
+import { useDeferredValue, useEffect, useMemo, useState, useTransition } from 'react';
+import Editor, { loader } from '@monaco-editor/react';
+import * as monaco from 'monaco-editor';
+import './monacoSetup';
+import { getCatalog, harnessForModule, type CatalogEntry } from './catalog';
+import { DEFAULT_SOURCE } from './defaultSource';
+import { loadManualSession, type ManualSessionInput } from './liveClient';
+import { PlaygroundProviders } from './mocks/PlaygroundProviders';
+import { PreviewErrorBoundary } from './PreviewErrorBoundary';
+import { ResizableStage } from './ResizableStage';
+import { LivePreview } from './LivePreview';
+import { usePlaygroundMatrix } from './usePlaygroundMatrix';
+
+// Use the npm monaco build — the CDN AMD loader breaks UMD deps like sanitize-html.
+loader.config({ monaco });
+
+type EditorTab = 'component' | 'harness';
+
+async function pushLiveSource(source: string) {
+  await fetch('/__playground/live', {
+    method: 'POST',
+    headers: { 'Content-Type': 'text/plain; charset=utf-8' },
+    body: source,
+  });
+}
+
+async function fetchComponentSource(filePath: string): Promise<string> {
+  const res = await fetch(`/__playground/source?path=${encodeURIComponent(filePath)}`);
+  if (!res.ok) throw new Error(`Failed to load ${filePath}: ${res.status}`);
+  return res.text();
+}
+
+async function pushComponentSource(filePath: string, source: string) {
+  await fetch(`/__playground/source?path=${encodeURIComponent(filePath)}`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'text/plain; charset=utf-8' },
+    body: source,
+  });
+}
+
+export function App() {
+  const catalog = useMemo(() => getCatalog(), []);
+  const [filter, setFilter] = useState('');
+  const [harnessSource, setHarnessSource] = useState(DEFAULT_SOURCE);
+  const [componentSource, setComponentSource] = useState<string>('');
+  const [editorTab, setEditorTab] = useState<EditorTab>('harness');
+  const [selected, setSelected] = useState<CatalogEntry | null>(null);
+  const [loadError, setLoadError] = useState<string | null>(null);
+  const [showTokenForm, setShowTokenForm] = useState(false);
+  const [manual, setManual] = useState<ManualSessionInput>(() => {
+    const saved = loadManualSession();
+    return (
+      saved ?? {
+        baseUrl: 'https://matrix.org',
+        userId: '@you:matrix.org',
+        deviceId: 'PLAYGROUND',
+        accessToken: '',
+      }
+    );
+  });
+  const deferredHarness = useDeferredValue(harnessSource);
+  const deferredComponent = useDeferredValue(componentSource);
+  const [, startTransition] = useTransition();
+  const matrix = usePlaygroundMatrix();
+
+  useEffect(() => {
+    fetch('/__playground/live')
+      .then((r) => r.text())
+      .then((text) => {
+        if (text.trim()) setHarnessSource(text);
+      })
+      .catch(() => undefined);
+  }, []);
+
+  useEffect(() => {
+    const handle = window.setTimeout(() => {
+      void pushLiveSource(deferredHarness);
+    }, 250);
+    return () => window.clearTimeout(handle);
+  }, [deferredHarness]);
+
+  // Upgrade stale RoomInput harness (bare <RoomInput /> or mocks.room) to useRoom().
+  useEffect(() => {
+    if (!selected?.importPath.endsWith('/RoomInput')) return;
+    if (harnessSource.includes('useRoom()')) return;
+    setHarnessSource(harnessForModule(selected.importPath));
+  }, [selected, harnessSource]);
+
+  // Writes the real component file — strings/markup edits land in src/app/…
+  useEffect(() => {
+    if (!selected || editorTab !== 'component') return;
+    if (!deferredComponent) return;
+    const handle = window.setTimeout(() => {
+      void pushComponentSource(selected.filePath, deferredComponent).catch((err) => {
+        setLoadError(err instanceof Error ? err.message : String(err));
+      });
+    }, 400);
+    return () => window.clearTimeout(handle);
+  }, [deferredComponent, editorTab, selected]);
+
+  const filtered = useMemo(() => {
+    const q = filter.trim().toLowerCase();
+    if (!q) return catalog;
+    return catalog.filter((e) => e.label.toLowerCase().includes(q));
+  }, [catalog, filter]);
+
+  const openEntry = (entry: CatalogEntry) => {
+    setSelected(entry);
+    setLoadError(null);
+    setEditorTab('component');
+    startTransition(() => {
+      setHarnessSource(harnessForModule(entry.importPath));
+    });
+    void fetchComponentSource(entry.filePath)
+      .then((text) => setComponentSource(text))
+      .catch((err) => {
+        setComponentSource('');
+        setLoadError(err instanceof Error ? err.message : String(err));
+      });
+  };
+
+  const liveReady = matrix.mode === 'live' && matrix.status === 'ready' && matrix.client;
+  const previewClient = liveReady ? matrix.client! : undefined;
+  const previewRoom = liveReady ? matrix.room ?? undefined : undefined;
+
+  const editorValue = editorTab === 'component' ? componentSource : harnessSource;
+  const editorPath =
+    editorTab === 'component' && selected
+      ? selected.filePath
+      : 'playground-live.tsx';
+
+  return (
+    <div className="app">
+      <header className="topbar">
+        <div>
+          <strong>Component Playground</strong>
+          <span className="muted">
+            {' '}
+            — Component tab edits real source · Harness tab only mounts it
+          </span>
+        </div>
+        <div className="topbar-actions">
+          <button
+            type="button"
+            className="ghost"
+            onClick={() => {
+              setSelected(null);
+              setComponentSource('');
+              setEditorTab('harness');
+              setHarnessSource(DEFAULT_SOURCE);
+            }}
+          >
+            Reset message preview
+          </button>
+        </div>
+      </header>
+
+      <div className="conn-bar">
+        <div className="conn-modes">
+          <button
+            type="button"
+            className={matrix.mode === 'mock' ? 'conn-btn active' : 'conn-btn'}
+            onClick={() => matrix.useMocks()}
+          >
+            Mocks
+          </button>
+          <button
+            type="button"
+            className={matrix.mode === 'live' ? 'conn-btn active' : 'conn-btn'}
+            disabled={matrix.status === 'connecting'}
+            onClick={() => {
+              void matrix.connectLive();
+            }}
+            title={
+              matrix.hasPaarrotSession
+                ? `Use logged-in session ${matrix.paarrotUserId}`
+                : 'Needs Paarrot login on this origin, or a pasted token'
+            }
+          >
+            {matrix.status === 'connecting' ? 'Connecting…' : 'Paarrot session'}
+          </button>
+          <button
+            type="button"
+            className="conn-btn"
+            onClick={() => setShowTokenForm((v) => !v)}
+          >
+            Token…
+          </button>
+        </div>
+
+        <div className="conn-status">
+          {matrix.mode === 'mock' && <span className="muted">Using lightweight mocks</span>}
+          {matrix.mode === 'live' && matrix.status === 'connecting' && (
+            <span className="muted">Syncing (memory store, no crypto)…</span>
+          )}
+          {matrix.mode === 'live' && matrix.status === 'ready' && (
+            <span className="conn-ok">{matrix.sessionLabel}</span>
+          )}
+          {matrix.mode === 'live' && matrix.status === 'error' && (
+            <span className="conn-err">{matrix.error}</span>
+          )}
+          {!matrix.hasPaarrotSession && matrix.mode !== 'live' && (
+            <span className="muted">Tip: log into Paarrot at / first, then hit Paarrot session</span>
+          )}
+        </div>
+
+        {liveReady && matrix.rooms.length > 0 && (
+          <label className="conn-room">
+            Room
+            <select
+              value={matrix.room?.roomId ?? ''}
+              onChange={(e) => matrix.selectRoom(e.target.value)}
+            >
+              {matrix.rooms.map((r) => (
+                <option key={r.roomId} value={r.roomId}>
+                  {r.name || r.roomId}
+                </option>
+              ))}
+            </select>
+          </label>
+        )}
+      </div>
+
+      {showTokenForm && (
+        <form
+          className="token-form"
+          onSubmit={(e) => {
+            e.preventDefault();
+            setShowTokenForm(false);
+            void matrix.connectLive(manual);
+          }}
+        >
+          <input
+            placeholder="Homeserver URL"
+            value={manual.baseUrl}
+            onChange={(e) => setManual((m) => ({ ...m, baseUrl: e.target.value }))}
+          />
+          <input
+            placeholder="@user:server"
+            value={manual.userId}
+            onChange={(e) => setManual((m) => ({ ...m, userId: e.target.value }))}
+          />
+          <input
+            placeholder="Device ID"
+            value={manual.deviceId}
+            onChange={(e) => setManual((m) => ({ ...m, deviceId: e.target.value }))}
+          />
+          <input
+            placeholder="Access token"
+            value={manual.accessToken}
+            onChange={(e) => setManual((m) => ({ ...m, accessToken: e.target.value }))}
+          />
+          <button type="submit" className="ghost">
+            Connect
+          </button>
+        </form>
+      )}
+
+      <div className="panes">
+        <aside className="pane catalog-pane">
+          <div className="pane-label">Cinny modules ({filtered.length})</div>
+          <input
+            className="filter"
+            placeholder="Filter components…"
+            value={filter}
+            onChange={(e) => setFilter(e.target.value)}
+          />
+          <div className="catalog-list">
+            {filtered.map((entry) => (
+              <button
+                key={entry.id}
+                type="button"
+                className={selected?.id === entry.id ? 'catalog-item active' : 'catalog-item'}
+                onClick={() => openEntry(entry)}
+                title={entry.filePath}
+              >
+                {entry.label}
+              </button>
+            ))}
+          </div>
+        </aside>
+
+        <section className="pane editor-pane">
+          <div className="pane-label editor-tabs">
+            <button
+              type="button"
+              className={editorTab === 'component' ? 'tab active' : 'tab'}
+              disabled={!selected}
+              onClick={() => setEditorTab('component')}
+              title={selected ? `Edit ${selected.filePath}` : 'Pick a module first'}
+            >
+              Component
+            </button>
+            <button
+              type="button"
+              className={editorTab === 'harness' ? 'tab active' : 'tab'}
+              onClick={() => setEditorTab('harness')}
+            >
+              Harness
+            </button>
+            <span className="muted tab-hint">
+              {editorTab === 'component' && selected
+                ? `writes ${selected.filePath}`
+                : 'mount-only · not saved'}
+            </span>
+          </div>
+          {loadError && <pre className="error-block editor-error">{loadError}</pre>}
+          <Editor
+            height="100%"
+            defaultLanguage="typescript"
+            path={editorPath}
+            theme="vs-dark"
+            value={editorValue}
+            onChange={(value) => {
+              const next = value ?? '';
+              if (editorTab === 'component') setComponentSource(next);
+              else setHarnessSource(next);
+            }}
+            options={{
+              minimap: { enabled: false },
+              fontSize: 13,
+              fontFamily: 'ui-monospace, SFMono-Regular, Menlo, Consolas, monospace',
+              scrollBeyondLastLine: false,
+              wordWrap: 'on',
+              tabSize: 2,
+              automaticLayout: true,
+              padding: { top: 12 },
+              readOnly: editorTab === 'component' && !selected,
+            }}
+            beforeMount={(monaco) => {
+              monaco.languages.typescript.typescriptDefaults.setCompilerOptions({
+                jsx: monaco.languages.typescript.JsxEmit.ReactJSX,
+                target: monaco.languages.typescript.ScriptTarget.ES2020,
+                allowNonTsExtensions: true,
+                esModuleInterop: true,
+                moduleResolution: monaco.languages.typescript.ModuleResolutionKind.NodeJs,
+                paths: {
+                  '@cinny/*': ['*'],
+                  '@playground/mocks': ['*'],
+                },
+              });
+              monaco.languages.typescript.typescriptDefaults.setDiagnosticsOptions({
+                noSemanticValidation: true,
+                noSyntaxValidation: false,
+              });
+            }}
+          />
+        </section>
+
+        <section className="pane preview-pane">
+          <div className="pane-label">Preview</div>
+          <div className="preview-body">
+            <ResizableStage>
+              <PlaygroundProviders client={previewClient} room={previewRoom}>
+                <PreviewErrorBoundary resetKey={`${deferredHarness}:${selected?.filePath ?? ''}`}>
+                  <LivePreview />
+                </PreviewErrorBoundary>
+              </PlaygroundProviders>
+            </ResizableStage>
+          </div>
+        </section>
+      </div>
+    </div>
+  );
+}

src/playground/LivePreview.tsx

@@ -0,0 +1,59 @@
+import { useEffect, useState } from 'react';
+
+/**
+ * Dynamically remounts the Vite virtual live module when the harness changes.
+ */
+export function LivePreview() {
+  const [revision, setRevision] = useState(0);
+  const [Comp, setComp] = useState<React.ComponentType | null>(null);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    const onUpdate = () => setRevision((n) => n + 1);
+    const handler = () => onUpdate();
+
+    // Vite custom event from liveTsxPlugin
+    if (import.meta.hot) {
+      import.meta.hot.on('playground:live-updated', handler);
+    }
+
+    return () => {
+      if (import.meta.hot) {
+        import.meta.hot.off('playground:live-updated', handler);
+      }
+    };
+  }, []);
+
+  useEffect(() => {
+    let cancelled = false;
+    setError(null);
+    setComp(null);
+
+    import(/* @vite-ignore */ `/@playground/live.tsx?t=${revision}`)
+      .then((mod) => {
+        if (cancelled) return;
+        const candidate = mod.default;
+        if (typeof candidate !== 'function') {
+          setError('Live module must `export default` a React component.');
+          return;
+        }
+        setComp(() => candidate);
+      })
+      .catch((err: unknown) => {
+        if (cancelled) return;
+        const message =
+          err instanceof Error
+            ? `${err.message}\n\n${err.stack ?? ''}`
+            : String(err);
+        setError(message);
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [revision]);
+
+  if (error) return <pre className="error-block">{error}</pre>;
+  if (!Comp) return <div className="muted">Compiling harness…</div>;
+  return <Comp />;
+}

src/playground/PreviewErrorBoundary.tsx

@@ -0,0 +1,40 @@
+import React, { Component, type ErrorInfo, type ReactNode } from 'react';
+
+type Props = {
+  resetKey: string;
+  children: ReactNode;
+};
+
+type State = {
+  error: string | null;
+};
+
+export class PreviewErrorBoundary extends Component<Props, State> {
+  state: State = { error: null };
+
+  static getDerivedStateFromError(error: Error): State {
+    return {
+      error: `${error.message}\n\n${error.stack ?? ''}`,
+    };
+  }
+
+  componentDidCatch(error: Error, info: ErrorInfo) {
+    console.error('[playground preview]', error, info);
+    this.setState({
+      error: `${error.message}\n\n${error.stack ?? ''}\n\n${info.componentStack ?? ''}`,
+    });
+  }
+
+  componentDidUpdate(prevProps: Props) {
+    if (prevProps.resetKey !== this.props.resetKey && this.state.error) {
+      this.setState({ error: null });
+    }
+  }
+
+  render() {
+    if (this.state.error) {
+      return <pre className="error-block">{this.state.error}</pre>;
+    }
+    return this.props.children;
+  }
+}

src/playground/ResizableStage.tsx

@@ -0,0 +1,86 @@
+import { useCallback, useEffect, useRef, useState, type CSSProperties } from 'react';
+
+type Props = {
+  children: React.ReactNode;
+};
+
+const MIN = 160;
+const MAX = 1200;
+
+export function ResizableStage({ children }: Props) {
+  const [size, setSize] = useState({ width: 520, height: 480 });
+  const dragRef = useRef<{
+    edge: 'e' | 's' | 'se';
+    startX: number;
+    startY: number;
+    startW: number;
+    startH: number;
+  } | null>(null);
+
+  const onPointerMove = useCallback((e: PointerEvent) => {
+    const drag = dragRef.current;
+    if (!drag) return;
+    const dx = e.clientX - drag.startX;
+    const dy = e.clientY - drag.startY;
+    setSize((prev) => {
+      let width = prev.width;
+      let height = prev.height;
+      if (drag.edge === 'e' || drag.edge === 'se') {
+        width = clamp(drag.startW + dx, MIN, MAX);
+      }
+      if (drag.edge === 's' || drag.edge === 'se') {
+        height = clamp(drag.startH + dy, MIN, MAX);
+      }
+      return { width, height };
+    });
+  }, []);
+
+  const onPointerUp = useCallback(() => {
+    dragRef.current = null;
+    window.removeEventListener('pointermove', onPointerMove);
+    window.removeEventListener('pointerup', onPointerUp);
+  }, [onPointerMove]);
+
+  const startDrag = (edge: 'e' | 's' | 'se') => (e: React.PointerEvent) => {
+    e.preventDefault();
+    dragRef.current = {
+      edge,
+      startX: e.clientX,
+      startY: e.clientY,
+      startW: size.width,
+      startH: size.height,
+    };
+    window.addEventListener('pointermove', onPointerMove);
+    window.addEventListener('pointerup', onPointerUp);
+  };
+
+  useEffect(() => () => onPointerUp(), [onPointerUp]);
+
+  const stageStyle: CSSProperties = {
+    width: size.width,
+    height: size.height,
+  };
+
+  return (
+    <div className="stage-wrap">
+      <div className="stage-meta">
+        {size.width} × {size.height}
+      </div>
+      <div className="stage" style={stageStyle}>
+        <div className="stage-canvas">{children}</div>
+        <button type="button" className="handle handle-e" aria-label="Resize width" onPointerDown={startDrag('e')} />
+        <button type="button" className="handle handle-s" aria-label="Resize height" onPointerDown={startDrag('s')} />
+        <button
+          type="button"
+          className="handle handle-se"
+          aria-label="Resize both"
+          onPointerDown={startDrag('se')}
+        />
+      </div>
+    </div>
+  );
+}
+
+function clamp(n: number, min: number, max: number) {
+  return Math.min(max, Math.max(min, n));
+}

src/playground/catalog.ts

@@ -0,0 +1,128 @@
+/**
+ * Path list of Cinny UI modules the playground can open.
+ */
+const componentModules = import.meta.glob(
+  [
+    '../app/components/**/*.{tsx,ts}',
+    '../app/features/**/*.{tsx,ts}',
+  ],
+  { eager: false }
+);
+
+export type CatalogEntry = {
+  id: string;
+  label: string;
+  importPath: string;
+  /** Path under cinny/, e.g. src/app/components/.../Foo.tsx */
+  filePath: string;
+};
+
+function toFilePath(viteKey: string): string | null {
+  const normalized = viteKey.replace(/\\/g, '/');
+  let rel = normalized;
+  const appIdx = rel.indexOf('/app/');
+  if (appIdx !== -1) {
+    rel = `src${rel.slice(appIdx)}`;
+  } else if (rel.startsWith('../app/')) {
+    rel = `src/${rel.slice('../'.length)}`;
+  } else if (rel.startsWith('../')) {
+    rel = `src/app/${rel.slice('../'.length)}`;
+  } else {
+    return null;
+  }
+  if (!/\.(tsx|ts)$/.test(rel)) return null;
+  return rel;
+}
+
+function toImportPath(viteKey: string): string | null {
+  const normalized = viteKey.replace(/\\/g, '/');
+  let rel = normalized;
+  const appIdx = rel.indexOf('/app/');
+  if (appIdx !== -1) {
+    rel = rel.slice(appIdx + '/app/'.length);
+  } else if (rel.startsWith('../')) {
+    rel = rel.replace(/^\.\.\//, '');
+  }
+  rel = rel.replace(/\.(tsx|ts)$/, '');
+  if (rel.endsWith('.css') || rel.includes('.css')) return null;
+  return `@cinny/app/${rel}`;
+}
+
+function toLabel(importPath: string): string {
+  return importPath.replace(/^@cinny\//, '');
+}
+
+export function getCatalog(): CatalogEntry[] {
+  const entries: CatalogEntry[] = [];
+  for (const key of Object.keys(componentModules)) {
+    if (/\.css(\.ts)?$/.test(key)) continue;
+    if (/\.test\./.test(key) || /\.spec\./.test(key)) continue;
+    // Prefer UI modules — plain .ts files are usually helpers/hooks, not preview targets.
+    if (key.endsWith('.ts') && !key.endsWith('.tsx')) continue;
+    const importPath = toImportPath(key);
+    const filePath = toFilePath(key);
+    if (!importPath || !filePath) continue;
+    entries.push({
+      id: key,
+      label: toLabel(importPath),
+      importPath,
+      filePath,
+    });
+  }
+  return entries.sort((a, b) => a.label.localeCompare(b.label));
+}
+
+/**
+ * Generated harness source. Prefer a clean named import the user can edit.
+ */
+export function harnessForModule(importPath: string): string {
+  const nameGuess =
+    importPath
+      .split('/')
+      .pop()
+      ?.replace(/[^a-zA-Z0-9_$]/g, '') || 'Component';
+
+  if (nameGuess === 'RoomInput') {
+    return `/**
+ * Preview harness for ${importPath}
+ *
+ * Uses the room from PlaygroundProviders (mock or live Paarrot session).
+ * Switch to the Component tab to edit the real source.
+ */
+import { useRef } from 'react';
+import { RoomInput } from '${importPath}';
+import { useEditor } from '@cinny/app/components/editor';
+import { useRoom } from '@cinny/app/hooks/useRoom';
+
+export default function Preview() {
+  const editor = useEditor();
+  const dropRef = useRef<HTMLDivElement>(null);
+  const room = useRoom();
+
+  return (
+    <div ref={dropRef} style={{ width: '100%' }}>
+      <RoomInput
+        editor={editor}
+        fileDropContainerRef={dropRef}
+        roomId={room.roomId}
+        room={room}
+      />
+    </div>
+  );
+}
+`;
+  }
+
+  return `/**
+ * Preview harness for ${importPath}
+ *
+ * This only mounts the component. To edit labels/strings/markup, switch to the
+ * Component tab (writes the real source file under src/app/…).
+ */
+import { ${nameGuess} } from '${importPath}';
+
+export default function Preview() {
+  return <${nameGuess} />;
+}
+`;
+}

src/playground/defaultLive.tsx

@@ -0,0 +1,43 @@
+/**
+ * Live preview harness — edit freely. Nothing is saved.
+ *
+ * - Import any Cinny module via `@cinny/...`
+ * - Use mocks / PlaygroundProviders from `@playground/mocks`
+ * - `export default` the component to render in the stage
+ */
+import { Message } from '@cinny/app/features/room/message';
+import { MessageLayout } from '@cinny/app/state/settings';
+import { Box, Text } from 'folds';
+import { mocks } from '@playground/mocks';
+
+export default function Preview() {
+  const room = mocks.room;
+  const mEvent = mocks.event;
+
+  return (
+    <Box direction="Column" gap="200" style={{ width: '100%', maxWidth: 520 }}>
+      <Text size="T200" priority="300">
+        Preview harness — swap imports to any `@cinny/...` export
+      </Text>
+      <Message
+        room={room}
+        mEvent={mEvent}
+        collapse={false}
+        highlight={false}
+        messageLayout={MessageLayout.Modern}
+        messageSpacing="400"
+        canDelete
+        canSendReaction
+        canPinEvent
+        hour24Clock={false}
+        dateFormatString="D MMM YYYY"
+        onUserClick={() => undefined}
+        onUsernameClick={() => undefined}
+        onReplyClick={() => undefined}
+        onReactionToggle={() => undefined}
+      >
+        <Text style={{ margin: 0 }}>{mEvent.getContent().body}</Text>
+      </Message>
+    </Box>
+  );
+}

src/playground/defaultSource.ts

@@ -0,0 +1,3 @@
+import defaultLive from './defaultLive.tsx?raw';
+
+export const DEFAULT_SOURCE = defaultLive;

src/playground/liveClient.ts

@@ -0,0 +1,151 @@
+import {
+  ClientEvent,
+  createClient,
+  MemoryStore,
+  SyncState,
+  type MatrixClient,
+  type Room,
+} from 'matrix-js-sdk';
+import { getCurrentSession, type Session } from '@cinny/app/state/sessions';
+
+export type LiveConnectMode = 'mock' | 'live';
+
+export type ManualSessionInput = {
+  baseUrl: string;
+  userId: string;
+  deviceId: string;
+  accessToken: string;
+};
+
+const MANUAL_SESSION_KEY = 'playgroundManualSession';
+
+/** Session already used by Paarrot/Cinny on this origin (localStorage). */
+export function peekPaarrotSession(): Session | undefined {
+  return getCurrentSession();
+}
+
+export function loadManualSession(): ManualSessionInput | null {
+  try {
+    const raw = sessionStorage.getItem(MANUAL_SESSION_KEY);
+    if (!raw) return null;
+    const parsed = JSON.parse(raw) as ManualSessionInput;
+    if (parsed?.baseUrl && parsed?.userId && parsed?.deviceId && parsed?.accessToken) {
+      return parsed;
+    }
+  } catch {
+    /* ignore */
+  }
+  return null;
+}
+
+export function saveManualSession(input: ManualSessionInput | null) {
+  if (!input) {
+    sessionStorage.removeItem(MANUAL_SESSION_KEY);
+    return;
+  }
+  sessionStorage.setItem(MANUAL_SESSION_KEY, JSON.stringify(input));
+}
+
+function normalizeSession(input: Session | ManualSessionInput): Session {
+  return {
+    baseUrl: input.baseUrl.replace(/\/$/, ''),
+    userId: input.userId,
+    deviceId: input.deviceId,
+    accessToken: input.accessToken,
+  };
+}
+
+function resolveSession(explicit?: Session | ManualSessionInput): Session {
+  if (explicit) return normalizeSession(explicit);
+
+  const fromPaarrot = peekPaarrotSession();
+  if (fromPaarrot) return normalizeSession(fromPaarrot);
+
+  const manual = loadManualSession();
+  if (manual) return normalizeSession(manual);
+
+  throw new Error(
+    'No Paarrot session found. Log in at / (same origin), or paste homeserver + token in the playground.'
+  );
+}
+
+function waitForPrepared(mx: MatrixClient, timeoutMs = 90_000): Promise<void> {
+  return new Promise((resolve, reject) => {
+    const finish = (ok: boolean, err?: Error) => {
+      clearTimeout(timer);
+      mx.off(ClientEvent.Sync, onSync);
+      if (ok) resolve();
+      else reject(err ?? new Error('Sync failed'));
+    };
+
+    const timer = window.setTimeout(
+      () => finish(false, new Error('Timed out waiting for Matrix sync')),
+      timeoutMs
+    );
+
+    const onSync = (state: SyncState | null) => {
+      if (state === SyncState.Prepared || state === SyncState.Syncing) {
+        finish(true);
+      }
+    };
+
+    mx.on(ClientEvent.Sync, onSync);
+    const cur = mx.getSyncState();
+    if (cur === SyncState.Prepared || cur === SyncState.Syncing) {
+      finish(true);
+    }
+  });
+}
+
+/**
+ * Live Matrix client for the playground.
+ * Uses MemoryStore so it won't fight Paarrot's IndexedDB sync/crypto stores.
+ * Skips Rust crypto — encrypted timelines won't decrypt, but profiles/rooms/settings APIs work.
+ */
+export async function connectLiveMatrixClient(
+  session?: Session | ManualSessionInput
+): Promise<MatrixClient> {
+  const finalSession = resolveSession(session);
+
+  const mx = createClient({
+    baseUrl: finalSession.baseUrl,
+    accessToken: finalSession.accessToken,
+    userId: finalSession.userId,
+    deviceId: finalSession.deviceId,
+    store: new MemoryStore({ localStorage: globalThis.localStorage }),
+    timelineSupport: true,
+  });
+
+  mx.setMaxListeners(50);
+  await mx.startClient({
+    lazyLoadMembers: true,
+    initialSyncLimit: 20,
+  });
+  await waitForPrepared(mx);
+  return mx;
+}
+
+export function stopLiveMatrixClient(mx: MatrixClient | null | undefined) {
+  if (!mx) return;
+  try {
+    mx.stopClient();
+  } catch {
+    /* ignore */
+  }
+}
+
+export function listJoinedRooms(mx: MatrixClient): Room[] {
+  return mx
+    .getRooms()
+    .filter((r) => r.getMyMembership() === 'join')
+    .sort((a, b) => (a.name || a.roomId).localeCompare(b.name || b.roomId));
+}
+
+export function pickDefaultRoom(mx: MatrixClient, preferredId?: string): Room | undefined {
+  const rooms = listJoinedRooms(mx);
+  if (preferredId) {
+    const hit = rooms.find((r) => r.roomId === preferredId);
+    if (hit) return hit;
+  }
+  return rooms[0];
+}

src/playground/main.tsx

@@ -0,0 +1,49 @@
+import { StrictMode, Component, type ErrorInfo, type ReactNode } from 'react';
+import { createRoot } from 'react-dom/client';
+import 'folds/dist/style.css';
+import { configClass, varsClass } from 'folds';
+import { App } from './App';
+import './styles.css';
+
+document.body.classList.add(configClass, varsClass);
+
+// Playground shares the Cinny origin — drop any SW/caches so stale shims cannot stick.
+if ('serviceWorker' in navigator) {
+  void navigator.serviceWorker.getRegistrations().then((regs) => {
+    for (const reg of regs) void reg.unregister();
+  });
+}
+if (typeof caches !== 'undefined') {
+  void caches.keys().then((keys) => Promise.all(keys.map((k) => caches.delete(k))));
+}
+
+class BootErrorBoundary extends Component<{ children: ReactNode }, { error: string | null }> {
+  state = { error: null as string | null };
+
+  static getDerivedStateFromError(error: Error) {
+    return { error: error.message };
+  }
+
+  componentDidCatch(error: Error, info: ErrorInfo) {
+    console.error('[playground boot]', error, info);
+  }
+
+  render() {
+    if (this.state.error) {
+      return (
+        <pre style={{ padding: 24, color: '#ffb4b4', whiteSpace: 'pre-wrap' }}>
+          {this.state.error}
+        </pre>
+      );
+    }
+    return this.props.children;
+  }
+}
+
+createRoot(document.getElementById('root')!).render(
+  <StrictMode>
+    <BootErrorBoundary>
+      <App />
+    </BootErrorBoundary>
+  </StrictMode>
+);

src/playground/mocks/PlaygroundProviders.tsx

@@ -0,0 +1,106 @@
+import { ReactNode, useEffect, useMemo, useState } from 'react';
+import { Provider as JotaiProvider } from 'jotai';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+import { MemoryRouter } from 'react-router-dom';
+import {
+  Box,
+  OverlayContainerProvider,
+  PopOutContainerProvider,
+  TooltipContainerProvider,
+  configClass,
+  varsClass,
+} from 'folds';
+import { MatrixClientProvider } from '@cinny/app/hooks/useMatrixClient';
+import { RoomProvider, IsDirectRoomProvider } from '@cinny/app/hooks/useRoom';
+import { SpecVersionsProvider } from '@cinny/app/hooks/useSpecVersions';
+import { DarkTheme, ThemeContextProvider } from '@cinny/app/hooks/useTheme';
+import {
+  PowerLevelsContextProvider,
+  type IPowerLevels,
+} from '@cinny/app/hooks/usePowerLevels';
+import { ContainerColor } from '@cinny/app/styles/ContainerColor.css';
+import type { MatrixClient, Room } from 'matrix-js-sdk';
+import { MOCK_POWER_LEVELS, createMockRoom, mocks } from './matrix';
+
+type Props = {
+  children: ReactNode;
+  client?: MatrixClient;
+  room?: Room;
+  isDirect?: boolean;
+  powerLevels?: IPowerLevels;
+};
+
+const SPEC_VERSIONS = {
+  versions: ['v1.11', 'v1.12'],
+  unstable_features: {
+    'org.matrix.msc3916.stable': true,
+  },
+};
+
+/**
+ * Wraps a preview in the providers Cinny UI pieces usually expect.
+ * Overlay/popout/tooltip portals stay inside the stage (not the full window).
+ */
+export function PlaygroundProviders({
+  children,
+  client,
+  room,
+  isDirect = false,
+  powerLevels = MOCK_POWER_LEVELS as IPowerLevels,
+}: Props) {
+  const [portal, setPortal] = useState<HTMLDivElement | null>(null);
+  const queryClient = useMemo(() => new QueryClient(), []);
+  const resolvedClient = client ?? mocks.client;
+  // Always provide a room with `.client` set — RoomInput/useStateEvent require it.
+  const resolvedRoom = useMemo(() => {
+    if (room) return room;
+    return createMockRoom({ client: resolvedClient });
+  }, [room, resolvedClient]);
+
+  useEffect(() => {
+    document.body.classList.add(configClass, varsClass, ...DarkTheme.classNames);
+  }, []);
+
+  return (
+    <div className="preview-frame">
+      <ThemeContextProvider value={DarkTheme}>
+        <TooltipContainerProvider value={portal ?? undefined}>
+          <PopOutContainerProvider value={portal ?? undefined}>
+            <OverlayContainerProvider value={portal ?? undefined}>
+              <QueryClientProvider client={queryClient}>
+                <JotaiProvider>
+                  <MemoryRouter>
+                    <SpecVersionsProvider value={SPEC_VERSIONS}>
+                      <MatrixClientProvider value={resolvedClient}>
+                        <RoomProvider value={resolvedRoom}>
+                          <IsDirectRoomProvider value={isDirect}>
+                            <PowerLevelsContextProvider value={powerLevels}>
+                              <Box
+                                className={ContainerColor({ variant: 'Surface' })}
+                                style={{
+                                  width: '100%',
+                                  minHeight: '100%',
+                                  height: '100%',
+                                  padding: 16,
+                                  borderRadius: 8,
+                                }}
+                              >
+                                {children}
+                              </Box>
+                            </PowerLevelsContextProvider>
+                          </IsDirectRoomProvider>
+                        </RoomProvider>
+                      </MatrixClientProvider>
+                    </SpecVersionsProvider>
+                  </MemoryRouter>
+                </JotaiProvider>
+              </QueryClientProvider>
+            </OverlayContainerProvider>
+          </PopOutContainerProvider>
+        </TooltipContainerProvider>
+      </ThemeContextProvider>
+      {/* Host for folds Overlay/Dialog portals — contained by .preview-frame */}
+      <div className="preview-portal" ref={setPortal} />
+    </div>
+  );
+}

src/playground/mocks/index.ts

@@ -0,0 +1,2 @@
+export { mocks, createMockMatrixClient, createMockRoom, createMockMatrixEvent, MOCK_POWER_LEVELS } from './matrix';
+export { PlaygroundProviders } from './PlaygroundProviders';

src/playground/mocks/matrix.ts

@@ -0,0 +1,245 @@
+import type { MatrixClient, MatrixEvent, Room } from 'matrix-js-sdk';
+import { MessageEvent, StateEvent } from '@cinny/types/matrix/room';
+import type { IPowerLevels } from '@cinny/app/hooks/usePowerLevels';
+
+type AnyFn = (...args: never[]) => unknown;
+
+function fn<T extends AnyFn>(impl?: T): T {
+  return (impl ?? ((() => undefined) as T)) as T;
+}
+
+export const MOCK_USER_ID = '@alice:example.org';
+export const MOCK_OTHER_USER_ID = '@bob:example.org';
+export const MOCK_ROOM_ID = '!room:example.org';
+export const MOCK_EVENT_ID = '$event:example.org';
+
+/** Default power levels — user can send messages / invite. */
+export const MOCK_POWER_LEVELS: IPowerLevels = {
+  users_default: 0,
+  state_default: 50,
+  events_default: 0,
+  invite: 0,
+  redact: 50,
+  kick: 50,
+  ban: 50,
+  historical: 0,
+  events: {
+    'm.room.message': 0,
+    'm.reaction': 0,
+  },
+  users: {
+    [MOCK_USER_ID]: 100,
+  },
+  notifications: {
+    room: 50,
+  },
+};
+
+function mockStateEvent(type: string, content: Record<string, unknown>, stateKey = ''): MatrixEvent {
+  return {
+    getId: () => `$${type}`,
+    getSender: () => MOCK_USER_ID,
+    getTs: () => Date.now(),
+    getType: () => type,
+    getContent: () => content,
+    getWireContent: () => content,
+    isRedacted: () => false,
+    getStateKey: () => stateKey,
+    isEncrypted: () => false,
+    getRoomId: () => MOCK_ROOM_ID,
+    event: { sender: MOCK_USER_ID },
+  } as unknown as MatrixEvent;
+}
+
+/** Lightweight MatrixEvent stand-in for UI previews. */
+export function createMockMatrixEvent(
+  overrides: Partial<{
+    id: string;
+    sender: string;
+    body: string;
+    ts: number;
+    type: string;
+    redacted: boolean;
+    content: Record<string, unknown>;
+  }> = {}
+): MatrixEvent {
+  const id = overrides.id ?? MOCK_EVENT_ID;
+  const sender = overrides.sender ?? MOCK_OTHER_USER_ID;
+  const content = {
+    body: overrides.body ?? 'Hello from the playground preview.',
+    msgtype: 'm.text',
+    ...(overrides.content ?? {}),
+  };
+  const ts = overrides.ts ?? Date.now() - 60_000;
+  const type = overrides.type ?? MessageEvent.RoomMessage;
+  const redacted = overrides.redacted ?? false;
+
+  return {
+    getId: () => id,
+    getSender: () => sender,
+    getTs: () => ts,
+    getType: () => type,
+    getContent: () => (redacted ? {} : content),
+    getWireContent: () => content,
+    isRedacted: () => redacted,
+    getStateKey: () => undefined,
+    isEncrypted: () => false,
+    threadRootId: undefined,
+    getRoomId: () => MOCK_ROOM_ID,
+  } as unknown as MatrixEvent;
+}
+
+/** Lightweight Room stand-in. */
+export function createMockRoom(
+  overrides: Partial<{
+    roomId: string;
+    name: string;
+    client: MatrixClient;
+    members: Record<string, { displayName?: string; avatarMxc?: string }>;
+    powerLevels: IPowerLevels;
+  }> = {}
+): Room {
+  const roomId = overrides.roomId ?? MOCK_ROOM_ID;
+  const members = {
+    [MOCK_USER_ID]: { displayName: 'Alice' },
+    [MOCK_OTHER_USER_ID]: { displayName: 'Bob' },
+    ...(overrides.members ?? {}),
+  };
+  const powerLevels = overrides.powerLevels ?? MOCK_POWER_LEVELS;
+
+  const stateByType: Record<string, MatrixEvent> = {
+    [StateEvent.RoomPowerLevels]: mockStateEvent(
+      StateEvent.RoomPowerLevels,
+      powerLevels as unknown as Record<string, unknown>
+    ),
+    [StateEvent.RoomCreate]: mockStateEvent(StateEvent.RoomCreate, {
+      room_version: '11',
+      creator: MOCK_USER_ID,
+    }),
+    [StateEvent.RoomPinnedEvents]: mockStateEvent(StateEvent.RoomPinnedEvents, { pinned: [] }),
+  };
+
+  const getStateEvents = ((type: string, stateKey?: string) => {
+    const ev = stateByType[type];
+    if (stateKey !== undefined) return ev ?? null;
+    return ev ? [ev] : [];
+  }) as Room['currentState']['getStateEvents'];
+
+  const liveState = {
+    getStateEvents,
+  };
+
+  const client = overrides.client ?? ({
+    on: fn(() => undefined),
+    removeListener: fn(() => undefined),
+    once: fn(() => undefined),
+    off: fn(() => undefined),
+  } as unknown as MatrixClient);
+
+  return {
+    roomId,
+    name: overrides.name ?? 'Preview Room',
+    client,
+    getMyMembership: () => 'join',
+    getMember: (userId: string) => {
+      const m = members[userId];
+      if (!m) return null;
+      return {
+        userId,
+        name: m.displayName ?? userId,
+        rawDisplayName: m.displayName ?? userId,
+        getAvatarUrl: () => null,
+        getMxcAvatarUrl: () => m.avatarMxc ?? null,
+      };
+    },
+    getCanonicalAlias: () => null,
+    getAltAliases: () => [],
+    getTimelineForEvent: () => null,
+    getLiveTimeline: () => ({
+      getTimelineSet: () => ({ relations: { getChildEventsForEvent: () => null } }),
+      getEvents: () => [],
+      getState: () => liveState,
+    }),
+    currentState: {
+      getStateEvents,
+    },
+  } as unknown as Room;
+}
+
+/** Lightweight MatrixClient stand-in used by MatrixClientProvider. */
+export function createMockMatrixClient(
+  overrides: Partial<{ userId: string }> = {}
+): MatrixClient {
+  const userId = overrides.userId ?? MOCK_USER_ID;
+  const users = new Map<
+    string,
+    {
+      userId: string;
+      presence: string;
+      presenceStatusMsg?: string;
+      currentlyActive: boolean;
+      getLastActiveTs: () => number;
+      on: AnyFn;
+      removeListener: AnyFn;
+      once: AnyFn;
+      off: AnyFn;
+    }
+  >();
+
+  const ensureUser = (id: string) => {
+    if (!users.has(id)) {
+      users.set(id, {
+        userId: id,
+        presence: 'online',
+        currentlyActive: true,
+        getLastActiveTs: () => Date.now(),
+        on: fn(() => undefined),
+        removeListener: fn(() => undefined),
+        once: fn(() => undefined),
+        off: fn(() => undefined),
+      });
+    }
+    return users.get(id)!;
+  };
+  ensureUser(userId);
+  ensureUser(MOCK_OTHER_USER_ID);
+
+  const client = {
+    getUserId: () => userId,
+    getSafeUserId: () => userId,
+    getDomain: () => 'example.org',
+    getUser: (id: string) => ensureUser(id),
+    getRoom: (id: string | undefined) =>
+      id ? createMockRoom({ roomId: id, client: client as MatrixClient }) : null,
+    getRooms: () => [createMockRoom({ client: client as MatrixClient })],
+    isRoomEncrypted: () => false,
+    getAccountData: () => undefined,
+    sendEvent: fn(async () => ({ event_id: '$sent' })),
+    sendStateEvent: fn(async () => ({ event_id: '$state' })),
+    redactEvent: fn(async () => ({ event_id: '$redact' })),
+    reportEvent: fn(async () => ({})),
+    downloadKeys: fn(async () => ({})),
+    mxcUrlToHttp: (mxc: string) => mxc,
+    on: fn(() => undefined),
+    removeListener: fn(() => undefined),
+    once: fn(() => undefined),
+  } as unknown as MatrixClient;
+
+  return client;
+}
+
+const defaultClient = createMockMatrixClient();
+
+export const mocks = {
+  userId: MOCK_USER_ID,
+  otherUserId: MOCK_OTHER_USER_ID,
+  roomId: MOCK_ROOM_ID,
+  eventId: MOCK_EVENT_ID,
+  powerLevels: MOCK_POWER_LEVELS,
+  client: defaultClient,
+  room: createMockRoom({ client: defaultClient }),
+  event: createMockMatrixEvent(),
+  createClient: createMockMatrixClient,
+  createRoom: createMockRoom,
+  createEvent: createMockMatrixEvent,
+};

src/playground/monacoSetup.ts

@@ -0,0 +1,12 @@
+import editorWorker from 'monaco-editor/esm/vs/editor/editor.worker?worker';
+import jsonWorker from 'monaco-editor/esm/vs/language/json/json.worker?worker';
+import tsWorker from 'monaco-editor/esm/vs/language/typescript/ts.worker?worker';
+
+// Vite-friendly Monaco workers (no AMD CDN loader).
+self.MonacoEnvironment = {
+  getWorker(_workerId: string, label: string) {
+    if (label === 'json') return new jsonWorker();
+    if (label === 'typescript' || label === 'javascript') return new tsWorker();
+    return new editorWorker();
+  },
+};

src/playground/shims/loglevel.js

@@ -0,0 +1,65 @@
+/**
+ * Standalone loglevel stand-in for the playground.
+ * Avoids Vite CJS interop fights with the real package; matrix-js-sdk only needs
+ * getLogger / levels / methodFactory / setLevel / rebuild.
+ */
+
+const levels = {
+  TRACE: 0,
+  DEBUG: 1,
+  INFO: 2,
+  WARN: 3,
+  ERROR: 4,
+  SILENT: 5,
+};
+
+const loggers = new Map();
+
+function defaultMethodFactory(methodName) {
+  return (...args) => {
+    const supported =
+      methodName === 'error' ||
+      methodName === 'warn' ||
+      methodName === 'trace' ||
+      methodName === 'info' ||
+      methodName === 'debug';
+    if (supported) console[methodName](...args);
+    else console.log(...args);
+  };
+}
+
+function createLogger(name) {
+  const logger = {
+    name,
+    prefix: undefined,
+    methodFactory: defaultMethodFactory,
+    getChild: undefined,
+    setLevel(_level, _persist) {},
+    getLevel() {
+      return levels.WARN;
+    },
+    setDefaultLevel() {},
+    enableAll() {},
+    disableAll() {},
+    rebuild() {
+      for (const methodName of ['trace', 'debug', 'info', 'warn', 'error']) {
+        logger[methodName] = logger.methodFactory(methodName, levels.DEBUG, name);
+      }
+    },
+  };
+  logger.rebuild();
+  // matrix-js-sdk expects console-like `.log` (e.g. logger.log.bind(logger)).
+  logger.log = logger.info;
+  return logger;
+}
+
+const loglevel = createLogger('root');
+loglevel.levels = levels;
+loglevel.getLogger = (name) => {
+  const key = String(name ?? 'default');
+  if (!loggers.has(key)) loggers.set(key, createLogger(key));
+  return loggers.get(key);
+};
+loglevel.methodFactory = defaultMethodFactory;
+
+export default loglevel;

src/playground/styles.css

@@ -0,0 +1,414 @@
+:root {
+  color-scheme: dark;
+  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
+  background: #0f1115;
+  color: #e8eaed;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+html,
+body,
+#root {
+  margin: 0;
+  height: 100%;
+}
+
+.app {
+  height: 100%;
+  display: grid;
+  grid-template-rows: auto auto auto 1fr;
+}
+
+.conn-bar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 12px 16px;
+  padding: 8px 14px;
+  border-bottom: 1px solid #232833;
+  background: #12161d;
+}
+
+.conn-modes {
+  display: flex;
+  gap: 6px;
+}
+
+.conn-btn {
+  border: 1px solid #2f3640;
+  background: transparent;
+  color: #c7ced8;
+  border-radius: 8px;
+  padding: 5px 10px;
+  cursor: pointer;
+  font-size: 12px;
+}
+
+.conn-btn:hover:not(:disabled) {
+  background: #1c2230;
+}
+
+.conn-btn.active {
+  background: #243147;
+  border-color: #3d7eff;
+  color: #fff;
+}
+
+.conn-btn:disabled {
+  opacity: 0.6;
+  cursor: wait;
+}
+
+.conn-status {
+  flex: 1;
+  min-width: 180px;
+  font-size: 12px;
+}
+
+.conn-ok {
+  color: #7dcea0;
+}
+
+.conn-err {
+  color: #ffb4b4;
+}
+
+.conn-room {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 12px;
+  color: #9aa3af;
+}
+
+.conn-room select {
+  max-width: 240px;
+  border: 1px solid #2f3640;
+  border-radius: 8px;
+  background: #0c0e12;
+  color: #e8eaed;
+  padding: 5px 8px;
+}
+
+.token-form {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(120px, 1fr)) auto;
+  gap: 8px;
+  padding: 8px 14px 10px;
+  border-bottom: 1px solid #232833;
+  background: #0f131a;
+}
+
+.token-form input {
+  border: 1px solid #2f3640;
+  border-radius: 8px;
+  background: #0c0e12;
+  color: #e8eaed;
+  padding: 7px 10px;
+  font-size: 12px;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+}
+
+@media (max-width: 1100px) {
+  .token-form {
+    grid-template-columns: 1fr;
+  }
+}
+
+.topbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 10px 14px;
+  border-bottom: 1px solid #232833;
+  background: #141820;
+}
+
+.topbar-actions {
+  display: flex;
+  gap: 8px;
+}
+
+.muted {
+  color: #9aa3af;
+  font-size: 13px;
+}
+
+.ghost {
+  border: 1px solid #2f3640;
+  background: transparent;
+  color: #e8eaed;
+  border-radius: 8px;
+  padding: 6px 10px;
+  cursor: pointer;
+}
+
+.ghost:hover {
+  background: #1c2230;
+}
+
+.panes {
+  display: grid;
+  grid-template-columns: minmax(200px, 280px) 1.2fr 1fr;
+  min-height: 0;
+}
+
+.pane {
+  min-width: 0;
+  min-height: 0;
+  display: grid;
+  grid-template-rows: auto 1fr;
+  border-right: 1px solid #232833;
+}
+
+.pane:last-child {
+  border-right: 0;
+}
+
+.pane-label {
+  padding: 8px 12px;
+  font-size: 11px;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  color: #8b949e;
+  border-bottom: 1px solid #232833;
+  background: #12161d;
+}
+
+.catalog-pane {
+  grid-template-rows: auto auto 1fr;
+  background: #10141b;
+}
+
+.filter {
+  margin: 8px 10px;
+  border: 1px solid #2f3640;
+  border-radius: 8px;
+  background: #0c0e12;
+  color: #e8eaed;
+  padding: 8px 10px;
+  font-size: 13px;
+}
+
+.catalog-list {
+  overflow: auto;
+  padding: 4px 6px 12px;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.catalog-item {
+  text-align: left;
+  border: 0;
+  background: transparent;
+  color: #c7ced8;
+  border-radius: 6px;
+  padding: 7px 8px;
+  font-size: 12px;
+  cursor: pointer;
+  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+}
+
+.catalog-item:hover {
+  background: #1a2130;
+}
+
+.catalog-item.active {
+  background: #243147;
+  color: #fff;
+}
+
+.editor-pane {
+  background: #1e1e1e;
+  grid-template-rows: auto 1fr;
+}
+
+.editor-tabs {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  text-transform: none;
+  letter-spacing: 0;
+}
+
+.tab {
+  border: 1px solid #2f3640;
+  background: transparent;
+  color: #9aa3af;
+  border-radius: 6px;
+  padding: 3px 8px;
+  font-size: 11px;
+  cursor: pointer;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+}
+
+.tab:hover:not(:disabled) {
+  background: #1c2230;
+  color: #e8eaed;
+}
+
+.tab.active {
+  background: #243147;
+  border-color: #3d7eff;
+  color: #fff;
+}
+
+.tab:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.tab-hint {
+  margin-left: auto;
+  font-size: 11px;
+  text-transform: none;
+  letter-spacing: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  max-width: 55%;
+}
+
+.editor-error {
+  margin: 8px 12px;
+  max-width: none;
+}
+
+.preview-pane {
+  background: #0f1115;
+}
+
+.preview-body {
+  overflow: auto;
+  padding: 24px;
+  display: grid;
+  place-items: center;
+}
+
+.stage-wrap {
+  display: grid;
+  gap: 8px;
+  justify-items: center;
+}
+
+.stage-meta {
+  font-size: 12px;
+  color: #8b949e;
+  font-variant-numeric: tabular-nums;
+}
+
+.stage {
+  position: relative;
+  background:
+    linear-gradient(45deg, #161a22 25%, transparent 25%),
+    linear-gradient(-45deg, #161a22 25%, transparent 25%),
+    linear-gradient(45deg, transparent 75%, #161a22 75%),
+    linear-gradient(-45deg, transparent 75%, #161a22 75%);
+  background-size: 20px 20px;
+  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
+  background-color: #0c0e12;
+  border: 1px solid #2a3140;
+  border-radius: 10px;
+  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
+  /* Contain folds position:fixed overlays inside the stage. */
+  transform: translateZ(0);
+  overflow: hidden;
+}
+
+.stage-canvas {
+  width: 100%;
+  height: 100%;
+  overflow: auto;
+  padding: 12px;
+  display: grid;
+  place-items: stretch;
+  align-content: stretch;
+}
+
+.preview-frame {
+  position: relative;
+  width: 100%;
+  height: 100%;
+  min-height: 200px;
+  /* Nested containing block so Overlay fixed coords map to the frame. */
+  transform: translateZ(0);
+  overflow: hidden;
+  border-radius: 8px;
+}
+
+.preview-portal {
+  position: absolute;
+  inset: 0;
+  z-index: 30;
+  pointer-events: none;
+}
+
+.preview-portal > * {
+  pointer-events: auto;
+}
+
+.handle {
+  position: absolute;
+  padding: 0;
+  border: 0;
+  background: #3d7eff;
+  opacity: 0.85;
+}
+
+.handle:hover {
+  opacity: 1;
+}
+
+.handle-e {
+  top: 12px;
+  right: -4px;
+  width: 8px;
+  height: calc(100% - 24px);
+  cursor: ew-resize;
+  border-radius: 999px;
+}
+
+.handle-s {
+  left: 12px;
+  bottom: -4px;
+  height: 8px;
+  width: calc(100% - 24px);
+  cursor: ns-resize;
+  border-radius: 999px;
+}
+
+.handle-se {
+  right: -5px;
+  bottom: -5px;
+  width: 12px;
+  height: 12px;
+  cursor: nwse-resize;
+  border-radius: 3px;
+}
+
+.error-block {
+  margin: 0;
+  max-width: 560px;
+  white-space: pre-wrap;
+  word-break: break-word;
+  padding: 14px 16px;
+  border-radius: 10px;
+  background: #2a1215;
+  border: 1px solid #5c1f28;
+  color: #ffb4b4;
+  font-size: 13px;
+  line-height: 1.45;
+}
+
+@media (max-width: 1100px) {
+  .panes {
+    grid-template-columns: 1fr;
+    grid-template-rows: 180px 1fr 1fr;
+  }
+}

src/playground/usePlaygroundMatrix.ts

@@ -0,0 +1,123 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import type { MatrixClient, Room } from 'matrix-js-sdk';
+import {
+  connectLiveMatrixClient,
+  listJoinedRooms,
+  loadManualSession,
+  peekPaarrotSession,
+  pickDefaultRoom,
+  saveManualSession,
+  stopLiveMatrixClient,
+  type LiveConnectMode,
+  type ManualSessionInput,
+} from './liveClient';
+
+type LiveState = {
+  mode: LiveConnectMode;
+  status: 'idle' | 'connecting' | 'ready' | 'error';
+  error: string | null;
+  client: MatrixClient | null;
+  room: Room | null;
+  rooms: Room[];
+  sessionLabel: string | null;
+};
+
+const initial: LiveState = {
+  mode: 'mock',
+  status: 'idle',
+  error: null,
+  client: null,
+  room: null,
+  rooms: [],
+  sessionLabel: null,
+};
+
+export function usePlaygroundMatrix() {
+  const [state, setState] = useState<LiveState>(initial);
+  const clientRef = useRef<MatrixClient | null>(null);
+  const roomIdRef = useRef<string | undefined>(undefined);
+  const paarrotSession = peekPaarrotSession();
+  const hasPaarrotSession = Boolean(paarrotSession);
+  const hasManualSession = Boolean(loadManualSession());
+
+  const teardown = useCallback(() => {
+    stopLiveMatrixClient(clientRef.current);
+    clientRef.current = null;
+  }, []);
+
+  useEffect(() => () => teardown(), [teardown]);
+
+  const selectRoom = useCallback((roomId: string) => {
+    roomIdRef.current = roomId;
+    setState((prev) => {
+      if (!prev.client) return prev;
+      const room = pickDefaultRoom(prev.client, roomId) ?? null;
+      return { ...prev, room };
+    });
+  }, []);
+
+  const connectLive = useCallback(
+    async (manual?: ManualSessionInput) => {
+      teardown();
+      setState((prev) => ({
+        ...prev,
+        mode: 'live',
+        status: 'connecting',
+        error: null,
+        client: null,
+        room: null,
+        rooms: [],
+        sessionLabel: null,
+      }));
+
+      try {
+        if (manual) saveManualSession(manual);
+        const mx = await connectLiveMatrixClient(manual);
+        clientRef.current = mx;
+        const rooms = listJoinedRooms(mx);
+        const room = pickDefaultRoom(mx, roomIdRef.current) ?? null;
+        if (room) roomIdRef.current = room.roomId;
+
+        const hs =
+          peekPaarrotSession()?.baseUrl ??
+          loadManualSession()?.baseUrl ??
+          '';
+        setState({
+          mode: 'live',
+          status: 'ready',
+          error: null,
+          client: mx,
+          room,
+          rooms,
+          sessionLabel: `${mx.getUserId() ?? '?'} · ${hs}`,
+        });
+      } catch (err) {
+        clientRef.current = null;
+        setState({
+          ...initial,
+          mode: 'live',
+          status: 'error',
+          error: err instanceof Error ? err.message : String(err),
+        });
+      }
+    },
+    [teardown]
+  );
+
+  const useMocks = useCallback(() => {
+    teardown();
+    roomIdRef.current = undefined;
+    setState(initial);
+  }, [teardown]);
+
+  return {
+    ...state,
+    hasPaarrotSession,
+    hasManualSession,
+    paarrotUserId: paarrotSession?.userId ?? null,
+    paarrotBaseUrl: paarrotSession?.baseUrl ?? null,
+    connectLive,
+    useMocks,
+    selectRoom,
+  };
+}

src/playground/vite-env.d.ts

@@ -0,0 +1,11 @@
+/// <reference types="vite/client" />
+
+declare module '*?raw' {
+  const content: string;
+  default content;
+}
+
+declare module '/@playground/live.tsx' {
+  const Comp: React.ComponentType;
+  export default Comp;
+}

src/types/matrix/room.ts

@@ -58,6 +58,9 @@ export enum MessageEvent {
   Sticker = 'm.sticker',
   RoomRedaction = 'm.room.redaction',
   Reaction = 'm.reaction',
+
+  /** Relay emoji confetti burst tied to a target message */
+  RelayEmojiConfetti = 'app.relay.emoji_confetti',
 }
 
 export enum RoomType {

vite.config.js

@@ -10,6 +10,9 @@ import { VitePWA } from 'vite-plugin-pwa';
 import fs from 'fs';
 import path from 'path';
 import buildConfig from './build.config';
+import { liveTsxPlugin, readDefaultLiveSource } from './playground-liveTsxPlugin';
+
+const projectRoot = path.resolve();
 
 const copyFiles = {
   targets: [
@@ -217,6 +220,30 @@ export default defineConfig({
   publicDir: false,
   base: buildConfig.base,
   assetsInclude: ['**/*.ogg', '**/*.mp3', '**/*.wav'],
+  resolve: {
+    // Keep a single React instance — dual copies cause resolveDispatcher() === null.
+    dedupe: ['react', 'react-dom'],
+    alias: [
+      { find: '@cinny', replacement: path.resolve(projectRoot, 'src') },
+      {
+        find: '@playground/mocks',
+        replacement: path.resolve(projectRoot, 'src/playground/mocks/index.ts'),
+      },
+      // Exact match only — do not rewrite loglevel/lib/...
+      {
+        find: /^loglevel$/,
+        replacement: path.resolve(projectRoot, 'src/playground/shims/loglevel.js'),
+      },
+      {
+        find: /^react$/,
+        replacement: path.resolve(projectRoot, 'node_modules/react'),
+      },
+      {
+        find: /^react-dom$/,
+        replacement: path.resolve(projectRoot, 'node_modules/react-dom'),
+      },
+    ],
+  },
   server: {
     port: 38347,
     host: '0.0.0.0',
@@ -232,6 +259,7 @@ export default defineConfig({
     serverMatrixSdkCryptoWasm('/node_modules/.vite/deps/pkg/matrix_sdk_crypto_wasm_bg.wasm'),
     serveGifWorker(),
     servePublicAssets(),
+    liveTsxPlugin(projectRoot, readDefaultLiveSource(projectRoot)),
     topLevelAwait({
       // The export name of top-level await promise for each chunk module
       promiseExportName: '__tla',
@@ -258,6 +286,16 @@ export default defineConfig({
     }),
   ],
   optimizeDeps: {
+    include: [
+      'react',
+      'react-dom',
+      'react/jsx-runtime',
+      'react/jsx-dev-runtime',
+      'loglevel',
+      'matrix-js-sdk',
+      '@monaco-editor/react',
+    ],
+    needsInterop: ['loglevel'],
     rolldownOptions: {
       define: {
         global: 'globalThis',
@@ -277,6 +315,10 @@ export default defineConfig({
     sourcemap: true,
     copyPublicDir: false,
     rollupOptions: {
+      input: {
+        main: path.resolve(projectRoot, 'index.html'),
+        playground: path.resolve(projectRoot, 'playground.html'),
+      },
       plugins: [inject({ Buffer: ['buffer', 'Buffer'] })],
     },
   },