Let's cut straight to the chase: I'd rather have my cards black-bordered like the earlier GoT cards. Imo the art stands out more, plus I just have a problem with white borders that goes deep; I can't explain it. I know, this will never happen as far as the devs are concerned, so the impulse will have to come from me. Now, I've done this before on some magic cards (the ones from 7th ed. and earlier: really butt-ugly cards imo) to fit them in my deck, but the results were sub-optimal, though still decent. Magic-cards, however, were replaceable and you'd have a sh/tload of 'em. These cards: not so much.
In the past I've simply used an alcohol marker to 'paint' them black, but some would leave some traces etc. The only real 'problem' was the value of some cards. In GoT, though, the value of cards is less than 25c each, so that issue can easily be put aside.
Do you guys have any experiences on the matter that might suggest a better method for this particular endeavor? It'd be much appreciated.