or really it could be g is green or p is for purple or any other color.
we fingerpaint first with the goal being to keep some of the paper showing around the edge (an exercise in self control) to make a “frame.”
then we used these after all the foam got pulled out to scratch out the letters of the color word. clearly ony could use fingernails, dull pencils, etc. the great thing is “erasing” by rubbing the paint smooth again.