Greasy Fork is available in English.
Adds colors to files by type, displays small images in place of file-type icons in a repository source tree
Color highlight by file type in repo listings.
Each type's color is randomly unique and automatically calculated.
Seed values can by customized, see below.
Image contents in its icon, 24px by default.
Seed values for color calculations can be customized by opening github.com and running the following command in devtools console:
localStorage.FileListBeautifier = JSON.stringify({
iconSize: 24,
colorSeed1: 2,
colorSeed2: 1299721,
colorSeed3: 179426453,
})