Features added:
1. Custom icon colors - Choose any color for geocache icons
2. Secret caches - Set visibility distance (only visible within X meters)
3. Edit existing caches - Change title, icon, color, visibility after creation
4. Geocache list sidebar - View all caches in edit mode, click to navigate
5. Visual indicators for secret caches (purple badge, transparency in edit mode)
Implementation:
- Added color picker with preview in geocache dialog
- Added visibility distance field (0 = always visible)
- Edit button for existing caches in edit mode
- Dynamic visibility updates based on user location in nav mode
- Geocache list sidebar with stats and quick navigation
- All properties sync via WebSocket to other users
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>