Not only pet snakes can have designer morphs.
The Wolf Snake is native to a large range of South Asia and Southeast Asia. Individuals of the same species from different locations appear to be very different. Patterns can be variable from patches, collars to bands. Coloration also varies from black, brownish, grayish, olive, to yellowish, pearl white and iridescent. It’s a result of divergent evolution.
It’s similar to how pet snakes got all the non-normal patterns and colors (morphs) generations after generations.
See more of my encounters with Hong Kong Wildlife.