It's actually a Millie that has "grafted" green fluorescent proteins that basically makes it look like a true graft between different color morphs. There's an article on Reefbuilders here:
https://reefbuilders.com/2019/01/10/the-rainbow-splice-acropora-millepora-from-reef-raft-canada/
Here's the pic which is obviously greased up as all RRC pics are, but I've seen the non-greased pics from the vendor that I'm getting it from and it is awesome.
Oh yeah. I assume you’re talking about Dan at TCK. His stuff is awesome. I got my elektra, rrc op, rrc pink matrix, TCK burning bush encruster and a couple others from him. You won’t be disappointed.