What I liked about radialMenu was that you can assign profiles to an .exe file. When you open up a program with the .exe, it automatically loads up the profile for that specific software. I assigned one for zbrush and one for photoshop. My profile changes as I go back and fourth between the softwares. This is something I REALLLLLLLLLLLLLLLLLLLLLLLLLLLLLLY want. Probably more so than custom PNG. It doesn't prevent me to get out of my zone to switch profiles each time I have to switch programs.
UNFORTUNATELY, this program only works for a few minutes before the buttons stop working.
Anyhow I also screen capped the tabletPro set up I have. I have button combinations of shift,alt,CTRL which allows me to mask, unmask, hide, unhide etc.