Press flag, than space to start. C to clone (won't make triangles, only lines.) E to erase everything. S to stop (you need to press green flag and space again.) Up and down arrows will increase and decrease speed set variable. Speed set is how many seconds it will take for a triangle or line to form. D to delete clones (experimental, might not work.) Turbo mode for super extra rainbow mode!
Turbo mode = epilepsy warning. Hurts my eyes. I'm not sure how it makes triangles but I think it is because the sprite is gliding to two different positions and teleporting while drawing.