Shadow said
I would really love to see the smoke gene here! One of my cats is a black smoke, and it is such a beautiful pattern. It might be a little more difficult to depict it, since the hair is white at the root and then colored, but there's different ways of showing smoke cats in a stylized way, so perhaps that's possible?
I have a smoke persian I can mess with for references of this if needed
It definitely shows as a nice subtle effect without having to get into the fur!