I wonder, if it is possible to make unit themes with dynamically changed textures.
You just say here is Color1, here Color2 and the user defines what Color1 and 2 actually are.
I think would add a lot to the game if you aren't forced to white/black units and can make the whole game look like you want it to be.
But not for the cost of having to maintain many different unit's textures for every new theme.
I fear players will only play the game because of the coms then and be disappointed about the game for every time they lose their unique awesome looking unit.