Not the real one obviously
the first color represents the type of media:
Anime
Purple: sub
Gray: raw
Lime green: non-eng translated
Manga
Teal: eng translated
Dark orange: non eng
Dark green: raw
Audio
Gold: Lossless
Bright red: lossy
and so on, take a look near the search function at the media type
the background represents the trust of the uploader.
Green -> trusted
Gray -> neutral
Red -> bad quality / uploads
background: red; goes harder imo