I gotta say, i really like how Papillon/Swallowtail was made to match with Caterpillar/Larvae, if the primary and secondary are the same color. I love the idea of different gene sets being made to interact with each other!!
Not that there aren't genes that share the same secondary colors, of course. But these feel like they were very much done on purpose, with the spotted patterns and themes being very similar.
(Color is Eggplant)