Piebald is a pattern of pigment over otherwise unpigmented skin. As a result, pied animals will have normal coloration in some places but be white or entirely pigmentless elsewhere. In some animals, like horses, it's a bred trait, but it arises in the wild as a mutation in many animals including just about anything from deer to penguins to squirrels to snakes! I couldn't find any photos of pied lions, but there are records of other pied big cats, like panthers.

I figure it'd work sort of like achromia with a layer of unpigmented fur and skin overlayed on the body, but with splotches cut out so the original colors/markings/genetics could be seen underneath.



It'd probably be one of the more common mutations, but maybe it could have a few variations so the splotches felt more random? :0