Hi Mark.
I was also wondering the same thing, but for histograms in the Distribution platform.
You see, in the other software packages I'm exposed to, it's easy to change the color of specific bin(s).
But then I realized why that is - in those stat softwares, all the graph outputs are just static - bins are just regular shapes that can be edited.
Unlike here in JMP, graphs are dynamically linked and interactive / live.
After a couple of minutes of tinkering, I found out that you can change the settings of the active or selected bin of the histogram in the Distribution Platform by going to Preferences > Graphs > Filled Areas - then select the Fill Selection Color of your choice and change the Fill Selection Mode option from Selected Patterned to Selected Same Color (link to animated gif screencast).
Hope this helps.
- Randy, JMP newbie.
- Randy