@nynaevelan
I use the coloring for marking 2 types of books in my bibliothek.
- I mark english books as I am german and most of the books are in german, I would like to know while scanning the whole bibliothek which book is in english. It is right, when you say, you can see it in the tag, but while searching/scanning I switch of the tag or it isn't in the visible range of screen.
- New books "just" added are in a somehow raw form. They get marked by 2 tags, one for showing the entry is raw and the second one for marking that the cover isn't added by now. These entries I mark red and darkred, so I can easily see whats the matter.