This is just something I made for fun ;) To change the colors of the shapes, just click on the color you want before selecting the shape. Both eraser size and pen size can be changed with the arrows. The pen size and the eraser size only go from 2 to 20, so don't expect the pen/eraser to get invisibly tiny or ginormous by clicking the arrow forever. Have fun!
What did you draw? Post in comments! Ugh my old intro is so outdated, but I'm to lazy to change it XD