https://www.wikipedia.org/wiki/Leopard

Melanistic leopards are also known as black panthers. Melanism in leopards is caused by a recessive allele and is inherited as a recessive trait. In India, nine pale and white leopards were reported between 1905 and 1967. Leopards exhibiting erythrism were recorded between 1990 and 2015 in South Africa’s Madikwe Game Reserve and in Mpumalanga. The cause of this morph known as a “strawberry leopard” or “pink panther” is not well understood.