Luma Fullbright

Luma is a lightweight, client-side FullBright mod that makes dark caves, nighttime areas, and unlit spaces easier to see. It changes only your local lightmap and does not modify the world or the server.

Press F7 to toggle FullBright on or off. A short on-screen message confirms the current state, and normal lighting is restored immediately when Luma is disabled.

Features

• Instant FullBright toggle
• Configurable keybind under Options → Controls → Key Binds → Luma
• F7 as the default key
• Clear enable and disable messages
• Starts disabled each time Minecraft launches
• Client-side only
• No Fabric API dependency

Compatibility

• Minecraft: Java Edition 26.3 Snapshot 7
• Mod loader: Fabric Loader 0.19.3 or newer
• Java: 25 or newer

Luma must only be installed on the client. It is not required on a multiplayer server.

Multiplayer notice

Luma changes lighting only and does not reveal blocks through opaque terrain. Some multiplayer servers may restrict FullBright or other visual client mods, so check the server rules before using it.

Installation

1. Install Fabric Loader for Minecraft 26.3 Snapshot 7.
2. Place the Luma .jar file in your instance's mods folder.
3. Start Minecraft and press F7 to toggle FullBright.

License

Luma is available under the MIT License.