Okay so I am sure this question is somewhere, but honestly I got tired of looking for it..
The MACO costume that unlocks with the MKXII (elite) stuff.
Can you make it some other color besides white?
The base color, not really. You can make it dark white/grey, but the selection is very narrow. For some of the sections you have the whole pallet to choose from, but for most of the costume you can't change it.