I think GP may be reacting based on common techniques of obscuring faces - i.e. ninjas wearing black masks, special ops putting dark paint on their face to obsc

I think GP may be reacting based on common techniques of obscuring faces - i.e. ninjas wearing black masks, special ops putting dark paint on their face to obscure details. I think the effectiveness of those techniques leads people to think that darker colors are harder to see or make out. But that analogy breaks down because here we're talking about fully lit situations, right?