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
< Feedback on GitHub file list beautifier
Since it works for me in Chrome, I've tried it in Firefox and saw it didn't colorize the main listing of a repo. For whatever reason github serves a different page html for Firefox. Should be fixed now in the updated script.
Sorry for the delayed response. It's working properly now. Thank you
Not working anymore