I can't decide what Dark Samus looks like under her power suit. Physically, she should be identical to Samus, as she's basically a pallet-swap. The question comes in when I wonder what colors her hair, eyes, skin, and zero suit are.
Thinking back, Phazon mutation doesn't seem to change the color of organic matter. So she'll just be really pale. Because the suit's never come off (even in my writing, it's currently still on). But she still needs to be more differentiated from Samus... Maybe I'll just search "dark samus" and see what I get?
People seem to favor either electric blue or black hair, and electric blue is WAY more interesting. The eyes vary, though. I'll go with red irises, because why not?