BossReng's UI Mod

A softer, slower, and more atmospheric way to open Minecraft.

About

I created this mod because I felt that Minecraft's main menu and sub-menus were a bit too plain; I wanted to elevate them from ordinary to something with an Apple-esque feel. And I've been listening to some lofi music lately to improve my concentration, so BossReng's UI Mod was born.

BossReng's UI Mod brings seasonal scenery, Lofi music, animated menus, and a liquid glass interface together into one calmer experience. It is meant to make the time between worlds feel less like waiting and more like part of the game.

The mod was created in collaboration with BossReng-GameStudio and Lofi Gril.

Boss_Reng and various Lofi music creators bring you the visuals and sounds for a more comfortable Minecraft experience.

What It Does

• Seasonal menu themes
• Background images and video backgrounds
• Lofi music playlists
• Animated Hello startup sequence
• Liquid glass buttons, panels, sliders, and text fields
• Mouse-based parallax movement
• Custom menu and interaction sounds
• Localized interface text
• External .brgsui theme packs
• Themed loading and transition screens
• In-game theme management
• Configurable glass effects through the Mod List menu

The interface is designed to stay out of the way when you are playing, then quietly make itself felt when you return to the menu.

Themes

Themes can include their own:

• background.png
• video.mp4
• Music files
• Icons
• Translations
• About-page text
• Theme metadata

The active theme can affect the main menu, supported settings pages, loading screens, transition screens, and other compatible interfaces.

Move your mouse around and the background will respond with a small parallax effect. It is subtle, but it makes the menu feel much less flat.

Liquid Glass

The liquid glass effect can be adjusted through the mod configuration screen.

Available settings include:

• Blur
• Tint
• Highlight
• Fresnel
• Shadow

The Hello Sequence

Every time Minecraft opens the main menu, the interface goes through a short startup sequence:

1. Theme resources are checked.
2. Required theme files are prepared.
3. The Hello animation begins.
4. The background gradually appears.
5. The video or static background takes over.
6. The menu capsules enter the screen.

Nothing is supposed to appear before the sequence is ready. The menu waits until the hand-off is complete.

It is a small detail, but it gives the menu an actual beginning.

.brgsui Theme Packs

Theme packs use the .brgsui format.

They are checked and loaded when Minecraft starts. A new pack added while the game is running will be picked up on the next launch.

Each pack is verified before it is used. Invalid package hashes or modified files are rejected instead of being loaded.

theme.brgsui
├── background.png
├── video.mp4
├── music/
├── icons/
├── lang/
├── about/
└── metadata.json

The format is intended to make it possible to add more themes in the future without baking every background and music track directly into the mod.

Required Mods

These dependencies are required:

• WaterMedia
• Kotlin for NeoForge

The mod may not start correctly without them.

Compatibility

This mod changes parts of Minecraft's menu and rendering flow, including:

• The main menu
• Loading screens
• Transition screens
• Buttons and widgets
• Settings screens
• Mod configuration screens

Most vanilla screens should work normally. However, mods that replace the same menus or use their own custom screen framework may conflict with the BRGS interface.

Development

This project is still being polished.

For now, development is focused on:

• Fixing rendering issues
• Improving screen compatibility
• Making resource loading more reliable
• Refining transitions
• Keeping theme packs consistent
• Reducing unnecessary visual glitches

If something breaks, please include the latest log or crash report when reporting it. A screenshot is helpful, but reproduction steps are even better.

Credits

With contributions and collaboration from:

• BossReng-GameStudio
• Lofi Gril
• Participating Lofi music creators

Copyright

This mod is closed-source due to copyright restrictions.

The code, music, videos, images, icons, theme packs, and other included assets may not be redistributed, modified, or repackaged without permission.

Take your time. Build something nice. Let the music play.