click the green flag, a = erase, b increase size, c decrease size, space to change color. (you might have to wait 5 seconds and mobile people, for now just go onto editor and click the spacebar, a, b and c code to change color, size, and erase.
pen extension used. made by me (@Jantime9) this is beta, future updates will come check out the project "pen drawer" (uses pen stamp) https://scratch.mit.edu/projects/1379582441/editor/
