So many different mutations that may affect colorations!!!!
Melanism- Overprodution of melanin pigmentation, results in dark or near black colorations
Pseudomelanism- Causes blotches of dark patterns on animals that may have naturally defined stripes or spots, ex King Cheetah and chocolate zebra
Albinsim- Often (but nothing always) identifiable by pinkish or red eyes, complete lack of melanin pigmentation
Leustic- Quite similar to albinism, but may have normally colored eyes, lips, noses, may appear more yellowish in some cases and may have blue eyes, is a near absence of melanin pigmentation but not complete
Erythrism- Red color mutations or unusual reddish pigmentation, cause of pink grasshoppers
Xanthyrism- Unusual yellow pigmentation, often result of missing red coloration/pigmentations, ex yellow cardinals, red headed woodpeckers instead having yellow head, etc.
Axanthism- mutation that effects the ability to create yellow colorations, yellow may be completely missing, causes green frogs to appear blue and in other cases like birds, normally yellow feathers will appear white or gray
Piebald- Some areas may lack pigmentation while it is present in other areas, in some species like dogs and humans hearing may also be affected
Vitiligo- Areas of the skin slowly loose their coloration, two different kinds