Watch out for contrast especially on the skeleton.
Using the disc class color as an accent around the rim is still quite recognizable compared to turning the entire thing red.
Also kind of makes the characters look like stickers put on top of a playing piece.
I googled "Board game tokens with stickers" and found
this as an example of what I mean.
Magic cards, among others, seem to have a similar composition.
It could also be related to a traditional playing card design
The card type color is an accent:
Instead of the color dominating and the icons being the accent:
Of course with the simplicity of surt's designs, the dominating class color actually works quite well.
Just some thoughts.
Logged
And knowing that it is, we seek what it is... ~ Aristotle, Posterior Analytics, Chapter 1