You mean what if you succeed to get both mutations to express? In theory the animal would be lavender looking but maybe some minor details are typically different from a black based lavender (skin, shanks, those small spots on some feathers).
Guess I was wondering what f2 would look like if f1 x f1 and if there was a way to successfully get chocolate into that breed which I only have lavender? Or would it just be a mess....