So back to the topic at hand, The fact that the card can be recognized by color alone is super interesting.
I think there are redundancies in place though because color doesn't always matter either.
At work I drew a card on a white board, and here's a picture I took this afternoon of Kirby on...
Only thing drive me crazy is all these new horror games nowadays is its so dark, all time. I can't even play them. I understand they trying to create spooky but be creative a little, not just darkness with pop out scare scenes.