My only knowledge of notedly different coloured orcs in one medium is from WoW, where the red ones were demonically corrupted from the green ones. Never heard of yellow orcs, and I'm honestly quite happy to remain ignorant on that presumably not great take.Anyway red and yellow orcs aren’t my “take”, there was a whole thread about it here.
Yeah, still haven't forgiven 5E for that. Especially after 4E* did such a good job in exploring how the demonic gnolls were corrupted and their faith stolen by Yeenoghu from Gorellik. Complete with revisionist history from the former that they were always the gnolls' creator and master.I’m never gonna be okay with demonic Gnolls with no free will, though. That’s a garbage retcon with no value.
You have flinds, they can fill that niche. Let the Gnoll stand as a people that have to decide between joining their demonic “kin”, avoiding them, or fighting them. That’s interesting. That adds to the game.
* Presumably this was introduced in an earlier edition, but 4E is the edition I first discovered it.