Themeing

[ForBai]

Sorry i couldn't bother writing a summary myself so here is AI summary:

This pull request introduces a comprehensive UI theming system to the project, enabling support for multiple themes (such as Dark, Light, and Custom), dynamic theme switching, and theme persistence across sessions. The implementation includes a Theme interface, concrete theme classes, a theme manager, color palette utilities, and integration with the configuration system for saving and loading user themes. Additionally, UI components have been updated to use the active theme's colors instead of hardcoded values.

Theming System Core:

• Introduced a new Theme interface defining a wide range of color properties for UI elements, serving as the contract for all theme implementations.
• Added concrete theme classes: DarkTheme, LightTheme, and a mutable CustomTheme for user-defined palettes. [1] [2] [3]
• Implemented ThemeManager as a singleton to handle theme registration, switching, and retrieval of the current theme.
• Added ThemePalette utility to generate and apply color schemes to CustomTheme instances, supporting easy customization and derivation of theme colors.

Persistence and Configuration:

• Updated the configuration system to support saving and loading themes (themes.json), including serialization/deserialization of custom themes and restoring the last selected theme on startup. [1] [2]

UI Integration:

• Refactored UI components (e.g., UIAddonEntry, UIBackButton) to use theme-based colors from ThemeManager.currentTheme instead of hardcoded color values, enabling dynamic theme changes throughout the UI. [1] [2] [3]

Animation Utility:

• Enhanced ColorAnimation with a new method to interpolate between two color integers, supporting smooth animated transitions between theme colors. [1] [2]

[ForBai]

dont merge yet i still need to implement importing and exporting

[ForBai]

[ForBai]

i just need to resolve conflict then i would say its ready to merge

[ForBai]

done