Built-in mods

Carbon ships 15 built-in mods in the repository at project/builtin-mods/. Each folder contains a production mod.yaml you can copy patterns from. In the desktop app they appear under Mods → Installed Mods; enable state and settings are stored per mod under bin/configs/mods/<id>/config.json.

Mods that use preset: operations are explained step-by-step in Preset operations.

Catalog

ID	Name	Summary
chat-reskin	Chat Reskin	LuaChat icons + gr-send graphics for PC chat
classic-oof	Classic Oof	Restores classic oof.ogg death sound
classic-ouch	Classic Ouch	Swaps hurt/damage ouch.ogg
cursor-swapper	Cursor Swapper	Preset or custom PNG cursors (when / unless)
dark-menu-logo	Dark Menu Logo	Dark escape-menu Roblox logo
ingame-menu-pack	In-Game Menu Pack	Themed escape menu tiles + logo ({theme})
loading-spinner	Loading Spinner	Spinner color dropdown
menubar-pack	Menu Bar Pack	Themed top menu icons (menu-icons preset)
minimal-stream-icons	Minimal Stream Icons	Subtle stream-off badge textures
movement-sounds	Movement Sounds	Jump/land/footstep merge via sounds preset
mute-oof	Mute Oof	Silent death sound
neon-menubar	Neon Menu Bar	Fixed neon menu icons (no settings)
night-sky	Night Sky	Full skybox via skybox preset
skybox-pack	Skybox Pack	Multiple sky presets (night, sunset, storm)
soft-ui-sounds	Soft UI Sounds	Quieter UI .ogg / .mp3 merges

Highlights by pattern

classic-oof {#classic-oof}

Simplest shape: one replace-file, no settings.

operations:
  - type: replace-file
    target: content/sounds/oof.ogg
    source: assets/oof.ogg

ingame-menu-pack {#ingame-menu-pack}

Dropdown setting drives multiple themed replacements:

settings:
  - key: theme
    type: dropdown
    default: dark
    options: [dark, light, midnight]
operations:
  - type: replace-file
    target: ExtraContent/textures/ui/InGameMenu/game_tiles_background_desktop.png
    source: assets/themes/{theme}/game_tiles_background_desktop.png

cursor-swapper {#cursor-swapper}

Combines dropdown, file, preset: cursor, and conditional ops:

operations:
  - preset: cursor
    source: assets/cursors/{cursor}.png
    unless: useCustom
  - preset: cursor
    source: "{customCursor}"
    when: useCustom

skybox-pack {#skybox-pack}

Preset merge with a user-selected folder:

operations:
  - preset: skybox
    source: assets/sky/{preset}
    mode: merge

movement-sounds {#movement-sounds}

Bulk sound swap without listing every filename:

operations:
  - preset: sounds
    source: assets/sounds
    mode: merge

Using built-ins as templates

1. Copy a folder from project/builtin-mods/<id>/.
2. Change id, name, author, and version.
3. Replace assets under assets/.
4. Install the folder as a user mod or keep it in your fork for development.

For field definitions see the mod.yaml reference.