I found it! I had searched for over an hour prior to posting and then a few minutes later I had "board magic" apparently.
In the "Contents/ChartSS" directory each graph type shows its parameters.
Where is a list of all the parameters that can be passed to a given chart?
In particular I would like to make the height of my Pie3D chart taller. But I really want to see all the parameters for all charts so I can tweak them now and in the future.