Interesting idea, though I'm not 100% sure what's going on. I'm just throwing dice at trees and doors and my dice are changing colour.
The spinning cube when you're holding a dice is very pretty. I also like the dice face art in the inventory.
It might be worth noting somewhere that you have to play in fullscreen or you can't see anything properly.
Also without the help controls I wouldn't have expected LMB to be fire, I was trying to use space.
The only reason I figured out you have to hit the trees is because one randomly had a number on it and I got curious, like maybe it was an enemy disguised as a tree