We'll be upgrading the game engine in a couple weeks! Here's a vid on some stuff that will come with that, and also what engine upgrades are about in general. idk, might be interesting.
1 like = 1 optimisation
1 rt = 1 infinite colors
https://www.youtube.com/watch?v=0kmDHBWf640
@Stryxus it's been in the whole time. what was discussed was a feature added (per instance custom data) to the engine that we could utilise to optimise our instancing.