Use the mouse (click and drag) to draw, and press space to clear the screen. Use the style variable to switch between @Pulljosh 's method and mine. I tried out a different way of using smooth pen which requires less math and fewer variables, but it falls behind the mouse more based on how smooth it is. I used two tricks from @Pulljosh 's how to pen project, the smooth movement: (target - value) / speed, and the rounding (for the slider) so that it would only go to the tenth's place
