This is really cool, however I often have it graying out rules I made for what seems like no reason? Its not when I have a rule for that beginning permutation again.
EDIT: I just noticed its when I pass through a rule I already had while drawing, it doesn't reset the grey after the rule has been changed
EDIT: I just noticed its when I pass through a rule I already had while drawing, it doesn't reset the grey after the rule has been changed