# Hi2Chat Build 04.2 - Browser Main Lobby UI

## Added
- Browser UI redesigned closer to requested Hi2Chat lobby mockup.
- Main Lobby is clean; theme chooser removed from main lobby.
- Settings -> Appearance page added.
- Themes available: Light Blue, Ocean Blue, Mint Green, Soft Purple, Peach Orange, Galaxy Dark.
- User can change username color, message text color, and font size.
- Main Lobby uses a single-line public feed style for all users.
- @mention support added: type @ to show user suggestions.
- Mentions panel shows who tagged whom and message context.
- Right sidebar online users with voice/video icons.
- Video popup overlays chat and does not disturb lobby layout.
- Mobile responsive drawer/sidebar layout.

## Test
1. npm install
2. npm run start:dev
3. Open tools/socket-test-client.html
4. Connect two browser tabs as UserA and UserB
5. Send messages and @mentions in Main Lobby