First off, choose the size of your circle. 1-17 makes a clear circle, above that makes cool patterns (0 makes a dot). Then, choose whether you want to use the first function or the second one by typing 1 or 2 (anything else will break it). Once chosen, you can press space to change the color (only type a number). The 'r' key resets it so you can choose the other function. The 'd' key changes the direction of the circle drawing on function 2. That's pretty much it.
Try turbo mode. Favorite ⭐ and Love ❤️ Please comment on bugs and provide ideas for more functions. All by me.