The game takes clear inspiration from Panel de Pon / Puzzle Challenge, which was my favorite block puzzle when growing up because of its colorblind-friendly design. I love the aesthetic of Rhythm Match, but I think it doesn’t quite capture that colorblind-friendliness. The two most similar shapes (diagonal hexagon and diagonal square) give me a lot of trouble, because they also have the two most similar colors (green and yellow). I would recommend swapping the hexagon out for a shape with a bolder outline, such as a star, heart, inverted triangle, or “X” shape.