this isn't very good as i'd like it more if it was like procederal generation or something close but the challenge is x and y. i can do x. i can do y. but i can't do them both and the corners too. This way is basically infinite but the problem with on large green square is that i can't do any designs if i want it to be infinite.
There is limits on this because scratch makes it so that sprites can't go past a certain point (always has to be visible) and the way i bypass that is make an 0 width diagonal line but it still doesn't work great.