Oh hey, thank you for keeping us accountable on proper artist credit. Seriously. Not to make excuses, but I don't think anyone on the team expected the amount of work that comes "post-jam." It's corrected now. I also took some time to tighten up the info delivery in the description, we'd gotten some feedback about that previously as well.
We had some ideas for the 'hide and wait' issue - but they didn't quite make it in time. I don't want to talk too much about cut features, but hopefully post-jam you'll get to see some of those ideas implemented!
As for different colors of dice, they were originally to be another visual indicator for when the game eventually got complex - if a Goblin and a Skeleton both had a 'dagger' attack as one of their faces, the colors would help differentiate them to the player if they both had daggers face-up. I think it was a little less important in the product we delivered, however.