Press the space bar to begin drawing, and then again to stop. C clears the space, and just hovering your mouse over the color changes it. Press H to hide the variables. Yes, I am aware that the black is actually a dark brown. I didn't know how to make it really black, but I actually think that this color is better because you can see the black of the text on the screen and the black dot. Sorry if it bothers you.
I just made this one afternoon when I was bored, so it might be a little bit glitchy. It was my little sister, Lolipoplet's, idea to add the option for black.
