One of the sections that is often very useful, but irritating in many applications is the Frequently Asked Questions page. Currently as this is a brand new application, the questions below are quite contrived (which is often one of my pet peves... How can the author know the frequently asked questions before they are asked?). I'll attempt to keep this updated as questions arise.
Q - How do I add shapes/objects to the graph. There don't appear to be any object classes available.
A - To add shapes/objects to the graph, you must define a class that derives from LayerDrawable. Once you have that, you can add it to the layer using the getContainer() method in GraphLayer.