My Tuning Graphs talk at the JMP User Conference was mostly a live demo of various ways to customize JMP graphs, so there weren't any slides to put on the USB thumb drive of conference proceedings. However, my sample files are now available in the new JMP Extras download area, including a few samples that I didn't have time to cover.
Some customizations were made interactively and some were custom graphics scripts. The last one I showed was a choropleth drawn completely with a JSL script -- the ultimate in customized graphs in JMP.
Now you can peruse the script that generated the graph and even the SAS code that generated the state polygons using SAS/GRAPH mapping PROCs.