does every starter have a hidden fur?

[Terrariea Resident]

I dont Think they have to hide a trait. But i have to proof it.

A starter must hide a hidden fur yes, but it does not have to be a "trait", im pretty sure my genesis starter gave me Another genesis fur longtime ago, but i will post proof if i ever find it cause now im getting unsure if it was truly true it was a starter.. But are you all 100% Sure s starter must hide traits? cause yes all cats have a hidden fur, Eye, eyeshape, pupil, shade, tail, ear, whisker color, whisker shape.. but they can be some gen? But atleast it have to be hiding 1 thing (out of 9?)