Thanks this did work.
However, is there a way to make my added icons show up in the "Visual Editor" in the "Choose Icon" dialog?
Thank you - I will give this a try and see if it works.
Uncaught ReferenceError: GAPlugin is not defined
Any update on the custom icons?
I followed the recipe in the doc, but the icons do not show up in visual editor - therefore are not accessible for placement using the VE.