I know this might be redundant to most of the other players but I have noticed Mythic cards are a lighter blue than Ultra Rare, which is already a light blue.
I am colour-blind to blue and already have to struggle with some of the colour choices in the game. Is it at all possible to tweak the blue(s) of Mythic and/or Ultra Rare?
I see Legendary is golden, probably because the developers never imagined at the beginning that they would invent a tier above Legendary. I suggest a silver-ish colour (to represent platinum) or just darken Ultra Rare to a colour more like the blue Gems.