all the variables are in the project. have fun. just press the green flag and it will draw something.
i don't really use scratch anymore, i use python, but i know someone who has a chromebook and can't use python, so have fun. i'm going to try to publish as little as is possible on scratch because i haven't realized how much of a pain it is to create variables(or really anything in scratch) until now. remember, everything that you will need to change is immediately after the "when green flag clicked" script and doesn't have a ridiculously long name.