Hugh,
I guess I'm dumb. The "step pads" are painted, too...and still black
First, Gary never said why he want to paint the step pads or what kind of paint he wanted to use. So without knowing what look he was trying to achieve, I assumed he was just trying to restore them back to the original look?
The step pad plastic is dyed to that color and the color goes all the way through the step pad. If the plastic step pads get scratched scratches do not show up as bad....that's why they use solid colored plastice for hard wear surfaces like step pads.
If the step pads are scarred up, painting them will not make them look much better, and as soon as the paint gets scratched up from steping on them, they will look much worse.
Yes, it is my opinion that painting the step pads is DUMB, based on the fact that people don't walk on the hood of their cars because they know it will damage the paint.
Eddie's suggestion about painting the step pads with bed-liner paint is an option that would work since that paint is designed for rough use and can stand up to people walking/steping on the painted surface without causing scratches or visable damage.
The only issue with painting the step pads with bed-liner paint, is that the thick paint will obscure the Hexagon tread pattern or make the tread look lumpy, but that may be hard to tell how it will look until you try it? But then again, we don't know what look Gary was trying to achieve?
...Rich