Azula_Arktandr said:
Undo this. Cyan as a color is quite visibly different to blue; and even has been established as a primary in CMYK color systems.

Those were never tagged consistently. What little of it there was, it was only because we spent way too much time sorting them under the proper tags.

So let's not undo it. Cyan was barely tagged for fur anyway: nine times out of ten, those got tagged as blue_fur. Which we then had to manually fix.