Here is the play test kit’s token sheet. These tokens help track effects during a challenge scene. Your actions can protect you from a particular action type (the circles) or boost or lower a combatant’s stats (the squares). This helps the game build interesting situations and context without requiring complex and unwieldy maps or miniatures. The colors are there to help players easily sort their own set of tokens.
One side of the tokens have color the other side is b&w. Each token is 8.5 mm square. I hope to print the production tokens on something like 2.5mm or 3mm punch board. the ones I made for my prototype on that size of board feel really nice and chunky.