The first set of pallet swaps are all blocked out and currently being added to the game. This is the plan for their colors, and how those colors pass along between generations. We also have some extra ones that’ll find their way in through other methods, if rather rarely.
Basically though, each column shows what a parent of a monster will be able to pass on in coloration to a child of a different species! Chimera is a weird one, because technically they’re super mutable, but of all the monster species, they are the ones who are the most able to absorb magic (besides dragons), because they are drawn from multiple species and can absorb a lot of different magical wavelengths. This tends to mean that their children are super-saturated with magic in a way that doesn’t lead to feralness, but does tint them the color of manacrystals throughout their bodies, leading to a distinct purple hue. What about the purple hue in a chimera? That is something you’ll have to find out in game.
Cloud Meadow Fanblog 
