feat(settings): Appearance section + theme switching #64
Description
Summary
Implement appearance settings with theme switching support.
Tasks
- Implement
AppearanceSection.tsx - Add theme switching (dark/light/system)
- Add CSS variables for theme tokens
- Add accent color picker
- Wire to electron vibrancy (macOS)
Settings
| Setting | Type | Default |
|---|---|---|
| Theme | dropdown | dark / light / system |
| Accent Color | color | #3b82f6 |
| Acrylic Background | checkbox | true (macOS only) |
Dependencies
- Depends on feat(settings): Schema foundation + Editor/General settings #63 (Schema foundation)