Edits: I experimented more.
Ok, so I think I get it. For whatever reason, the base color of the logos is red, and, while the editor will render it with the color showing correctly, in game when actually rendered, the red acts as a base. So if you make it white, it becomes washed red. make it blue, leads to purple. It seems like there is something about the mod that prevents the logos from changing colors completely. IK this mod is around a month old, but is there any way this could be fixed? I like the logos in this pack and its very sad that I can not properly color them.