Set the shapes and sides and then press the green flag to start it off. Shapes = No. of rotations Sides = No. of sides on each individual shape. Colour change = How quickly it changes colours ie. 0 = stays the same, 360 = changes colours like Usain Bolt. Pen size = How thick the pen is. Arc of turn = How wide the arc of turn is ie. 1 = a circle, basically! 37 = a spiral. ie. Shapes = 12 and Sides = 6 would make a pattern of 12 hexagons.
Just a bit of fun; only took a few minutes but looks pretty cool!