- 4 built-in themes (Default, Pastel, High Contrast, Ocean Blue) seeded as
JSON files in /config/themes/ on startup; custom themes can be created,
edited, and deleted via the new admin Appearance page
- All theme tokens applied via JS inline CSS properties (no hardcoded CSS blocks)
- New `color_mode` column on users table (migration dd6ad2f2c211); users can
override the admin-set global default in Settings
- Backend: GET/PATCH /settings/appearance, full CRUD on /settings/themes
- Frontend: AdminAppearancePage with theme grid + colour pickers, SettingsPage
replaces placeholder with mode selector, useTheme rewritten to fetch from API
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>