I am a colorblind player,and while playing the game ,I always mistake RED+YELLOW+BULE and YELLOW+BLUE.Though I used colorblind mode ,it still takes me a lot time to find where’s wrong.So I think to add a function ,while players are confusing where’s wrong ,it can give suggestions(For example,when the goal color of the shape is YELLOE+BLUE,but I submited YELLOW+BLUE+RED,it could meantion me that I gave the wrong color).