This is an old revision of the document!
Here is my screenshot of 2.08:
Here's a picture I enjoyed:
Changes pattern, based on type of mouse action (drag, left click, right click)
Line moves across screen upon keypress
Lines appear across the canvas as keys on the keyboard are pressed
When up key is pressed: box goes above the line, when down key is pressed: box goes below the line
For chapter 9, I chose 9.03 - When you drag the mouse from the upper left corner to the bottom right corner, the spirals start to form