Rong (রং)

Caution

This is highly experimental 🧪 and expect breaking changes

Rong is a CLI that extracts a Material You color palette from an image or video, and applies it across your system using configurable template mappings.

🎨 Features

• Extracts color palettes from images or videos
• Generates color output using customizable templates
• Automatically writes output to multiple target files
• Easily theme apps like WezTerm, Eww, Kitty, Spicetify, Waybar, and Discord mods

Example:

rong image ~/Pictures/wallpaper.jpg

Check out the documentation.

Contribution Guide

You're welcome to contribute in the following ways:

1. Code (Go) – Add features, fix bugs, or improve code. Stick to existing patterns and open a clear PR.

2. Templates – Add custom templates for any app using Go's template engine. Keep them clean and reusable.

3. Docs – Write or improve docs (VitePress Markdown). New pages, typo fixes, or better explanations all help.

License and Credit

Rong is licensed under GNU GPL-3.0. This cli uses material for generating colors.

Thanks to

• Matugen: For some of the templates.
• Material Color Utilities: For the material color algorithm.