Implemented comprehensive dark/light mode support throughout the app:
- Added ColorSchemeScript to layout for auto-detection of system preference
- Updated MantineProvider to use 'auto' color scheme (respects system)
- Updated theme.ts with dynamic Paper component styles based on color scheme
- Created ThemeToggle component with sun/moon icons
- Added toggle to desktop sidebar navigation
- Created theme-specific favicons (favicon-light.svg, favicon-dark.svg)
- Made ThoughtGalaxy 3D visualization theme-aware:
- Dynamic node colors based on theme
- Theme-aware lighting intensity
- Theme-aware link colors
- Theme-aware text labels
- Added comprehensive Playwright tests for theme functionality
- Theme preference persists via localStorage
Tested manually with Playwright MCP:
- ✅ Theme toggle switches between light and dark modes
- ✅ Theme persists across page reloads
- ✅ Both modes render correctly with appropriate colors
- ✅ Icons change based on current theme (sun/moon)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>