I don't know if anyone else noticed, but in real life Vitiligo is actually not a marking.

Vitiligo: a long term skin condition characterised by patches of skin losing their pigment. The cause of vitiligo is unknown, but is thought to be due to an autoimmune disease or mutation which results in the immune system killing off melanin(pigment cells), thus causing patches of white or albino skin.

There are two types of vitiligo; segmental and non-segmental.
Segmental vitiligo occurs mostly on one side of the body and more often than not does not worsen over time.
Non-segmental vitiligo can occur anywhere on the body but usually has some form of symmetry to it, this type metastasizes. Over time existing patches will increase in size and new patches occur.


Instead of being a marking, Vitiligo should be a mutation similar to Piebald. There would be the two types Vitiligo (Segmental) and Vitiligo (Non-segmental). Segmental wouldn't differ much from the markings but non-segmental would appear around the orifices and paws/toes and would spread like it does in real life.

A non-segmental cub would have a small number of barely visible spots at birth. Each year the patches would increase in visibility until at 14 or 15 years the lion would be completely albino/white.
Vitiligo is not fatal and wouldn't effect gameplay

Piebald is actually not a mutation irl. It is a common pattern/marking seen on horses and cows, and sometimes dogs and cats.