- Set default light background color to pure white across html, body, and app-shell
- Replace grayish background, diffuse card shadows, and translucent pills in usage records with pure white surfaces and clean borders
- Ensure usage tables and subpage panels render consistently as pure white documents
- Update UI accessibility regression tests to assert pure white surfaces
- Use Tauri native theme APIs with Linux desktop preference support
- Fall back to WebView theme detection for startup and browser preview
- Add a follow-system option to both standard and beginner modes
- Persist preferences and handle resume events and async race conditions
- Add translations and theme behavior and UI regression tests
lzt404