Hira said:
Do we have a tag for monochrome fur? For example, sometimes I want to look up pictures of a species with *only* black fur. But half the images with the tag black_fur have if because a fully orange furred character has a single blotch of black somethere on his left cheek.

When looking for black_fur I want this https://static1.e621.net/data/a3/b5/a3b5687008cd6f8370dfa26982a9f071.gif

but get this
https://static1.e621.net/data/ea/83/ea83a68df9dd7d88de460a95068e14b4.jpg

Not that I know of, unfortunately (I agree it would be a nice thing for a tag to specify).

The closest thing I can think of is to search for black_fur -multicolored_fur, for example. But obviously that fails for two reasons:
(1.) Not everyone tags multicolored_fur when they should.
(2.) This would not show pictures with 1 or more multicolored characters in addition to an all-black character.