I was rather dissatisfied with yesterday’s button. So, I took some suggestions from Sarah (make it look like a black button with an edge) and I really really like how this one turned out.
I think the button feels plastic (some gradient fills and smudging), and I think the carpet has real carpet texture. This came about in a weird way that I don’t even know if I could duplicate. I did a normal paint can fill. Then I took the airbrush pen set to the highest size and added a few dabs of a slightly darker red. From there I added Texture>Grain (which looked very cool, but not how I wanted). Then I did a Gaussian Blur. I added a bit of smudging around the button for carpet fibers.