Lots of leather wallets will discolor basically anything. I get little streaks on all my cards. It probably can get scrubbed off my "platinum" cards somehow but sure doesn't come off with casual cleaning.
Clearly they didn't learn much from all those black scuffed dirty white MacBook charging cables...
> If your titanium Apple Card comes into contact with hard surfaces or materials, it's possible that the coating can be damaged.
This seems all but a guarantee!
This thing will be handled by dirty hands, slid in and out of machines, put into those folder things at restaurants (I've spilled salsa and other things on those more than once), and more.
I have a few metal cards... They're all dark colors, and I've never once had to think about how to keep them clean looking.