Added support for a dynamic 'Custom' theme button that appears when user settings diverge from predefined themes. Improved theme state management by tracking the active theme name in localStorage, updating button states, and refining the preview to better reflect customizations. Also updated the settings page layout and styles for better user experience and fixed the preview to always show the custom title.
Introduces seven new built-in themes (cyberpunk, midnight-rose, arctic-ice, cherry-blossom, cosmic-purple, emerald-dream, mocha-coffee, lavender-fields) with corresponding JSON files, updates the FEATURES documentation, and enhances the settings UI to display and select these themes. Also updates theme loading logic in theme-manager.js and improves the theme selector layout for better usability.
Introduces a full browser customization system with support for theme presets, live editing, import/export, and non-destructive design. Adds new documentation for customization, updates the features list, and implements a ThemeManager for loading and managing themes at the application level. Updates home and settings pages to support live theming and preview, and adds four built-in themes (default, forest, ocean, sunset).
andrew