This is the busiest screen in the tour. Three hotspots: a small one at the far left and a large one in the middle both lead to Demo 3, while a tiny box between them, about 37 by 31 pixels, goes back to Demo 1. Giving the forward step two targets is a quiet admission that people click on different things, and a prototype that catches both saves a confused moment in testing.
The frame above is drawn at the original proportions. Each dashed box sits where the 2009 hotspot sat and links to the same screen it did then, so the tour can still be walked end to end.