Looking at the picture below, I see what looks like a black mat on the running board. Or maybe it just painted black with a chrome strip on the edge, or a chrome running board all together. I'm trying to duplicate what I see in the picture, so does anyone know where I can buy a pre molded mat that fits over the ribs of the running board for a 3100 shortbed? And, does anyone sell a chrome or stainless trim piece that goes along the edge of the running board (if the running board isn't chromed all together)? Thanks