Fiddling with genetics is super easy. The hardest part is knowing what number relates to what hair/eye color (I think you can find a list on MATY).

I set up recessives on a lot of Peculiar-ites. I think I even went in and gave Percy recessive blond (from his short lived mother). But did I give recessives to the Curiouses? Hmm, might have to check that.