An overthinker indeed! Mina doesn't care about ANY of that, truthfully, so it does confuse her a little why anyone would think that hard over colors.

"It's just colors, tho." sure, the pink is important to her, but specifically her pink skin. She doesn't care about colors on the wall that much, and sure the white makes it all feel like a hospital, but if that's something that makes David feel better, then she doesn't care.

"I can buy white paint tomorrow and just paint it over." no big deal for her, really.