BossReng's UI Mod

This update rebuilds a large part of the menu experience and prepares the mod for a more stable release.

Added

• Added a new Apple-style Hello intro before the main menu.
• Added a preload screen that checks and prepares built-in theme packs before the Hello intro starts.
• Added .brgsui theme pack support.
• Added a new theme manager for choosing which themes appear in the main menu capsule.
• Added configurable Liquid Glass parameters in the Mod List config screen.
• Added background dimming and blur when hovering over main menu capsules.
• Added Moonlight support for the mod configuration list. If Moonlight is installed, the Mods button opens its configurable mods screen; otherwise it falls back to NeoForge.

Changed

• Reworked the main menu capsule entrance animation.
• Reworked the transition from the Hello intro into the main menu.
• Theme resources are now extracted and prepared on startup instead of being loaded during theme switching.
• Updated all menu icons to Material Symbols Rounded.
• Adjusted icon sizing for better readability inside the capsule UI.
• The Theme Manager and About screen now use the same mouse parallax background behavior as the main menu.
• Several loading and transition screens now use the active theme background instead of a plain black screen.

Fixed

• Fixed black flashes between the Hello intro, static backgrounds, and video backgrounds.
• Fixed the main menu sometimes staying black after the Hello intro.
• Fixed theme switching sometimes showing the wrong season background.
• Fixed deleted built-in theme resources not being restored on the next launch.
• Fixed several screens not being properly themed.
• Fixed layout issues in the theme manager on larger window sizes.
• Fixed visual artifacts around some glass buttons and input fields.
• Fixed missing translations in several menu/config screens.
• Fixed mixed Chinese/English text spacing issues.
• Fixed the Theme Manager back button not using the shared icon style.
• Fixed Theme Manager buttons not using the mod's custom click sounds.

Details

The new startup flow now runs in this order:

1. Preload and verify theme resources.
2. Play the Hello intro.
3. Reveal the active theme background.
4. Show the main menu capsule animation.