Input the x and y and watch it draw a blank window.
I made all the code for this It works by starting white, and if it's in the box turn a light gray, and if it's on the boarder turn a darker grey, then stamp. (it does this for every pixel, but if you go inside, then you can change it so that it has a lower resolution and render faster. this is inspired by the most recently featured project: https://scratch.mit.edu/projects/164449862/