Draw a filled black lightning bolt like the picture. It has a sharp zigzag shape with a long point at the bottom.

Start at (-40, 100). Draw these points in order, then return to the start:

(15, 100), (-5, 35), (65, 50), (-5, -100), (10, -15), (-60, -30).

Use begin_fill() before drawing the outline and end_fill() after you return to the start.