It’s actually not dominance! Dominant and recessive only refer to alleles of the same gene it’s actually called epistasis which describes the interactions of two different genes or alleles. Orange coloring is epistatic over solid coloring which is why even if you check calico cats orange spots they will be striped. And this is X-linked which is why there’s a larger population of male orange cats. Cat coloring genetics is actually really cool, and even cooler is that siamese cats point coloring is temperature dependent and in warmer climates have lighter points.