ZBrushCentral

How do you make the MatCap from "Clay Time #4"?

I’m messing with the materials and I can’t figure out how to do the material used in the Clay Time #4 video which changes color while sculpting and looks good like in the video. I can’t seem to find anywhere what material this is or how it’s done, anyone know?

You can find two tone materials in Spotlight-Project folder.