Swordoath Omega
Ramba Ral wore blue ... And Gato's green was a brighter, foresty green. Maybe you get to custom up your uniform if you're an ace? Most aces had custom normal suits that matched their mobile suits' colours (eg: Black Tri-Stars, Ridden, Matsunaga, Aznable) -- maybe they can get custom uniforms as well?
Exactly.
I'd definitly have to agree on this point, as most aces in uniform I've seen have had their own custom normal suit, and sometimes custom uniform colors.