Rong
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Getting Started ​

To get started install rong and generate colors.

Installation ​

You need go to install rong. Run:

bash
go install github.com/Nadim147c/rong@latest

To ensure you've properly installed rong, run:

bash
rong --help

If you see the help menu, then you've successfully installed rong.

A Material You color generator from an image or video.

Usage:
  rong [command]

Available Commands:
  ...

Generate Colors ​

To extract Material You-compatible colors from an image:

bash
rong image /path/to/image

To extract colors from a video:

bash
rong video /path/to/video

INFO

This command internally uses ffmpeg to extract frames. Only 5 frames are sampled by default to ensure a balance between performance and accuracy. These frames are evenly distributed across the video duration—not just the first 5.

The generated colors will be used to create theme files using built-in templates (or user-defined templates). These files will be stored in $XDG_STATE_DIR/rong/ (usually ~/.local/state/rong/):

bash
$ ls ~/.local/state/rong/
colors.scss  gtk-css.css  midnight-discord.css  spicetify-sleek.ini
colors.css   dunstrc      hyprland.conf         pywalfox.json
colors.lua   ghostty      image.txt             qtct.conf
colors.nu    gtk.css      kitty.conf            rofi.rasi

See the templates page.

TIP

If you're not sure whether the file is an image or video—or if you want to use both—you can use the video command, as ffmpeg supports both image and video inputs:

bash
rong video /path/to/image/or/video