Thanks, all. I highly doubt that mine are oak or stained oak. The grain just doesn't look quite right for oak.
Sherod... you may want to do what I did for the volume control. Just take some titanium white acrylic paint and the smallest bristle brush you can find, or a toothpick. Dot a small bit of the white paint into the recessed dot on the volume knob and carefully wipe away any extra. The dot is bright enough to see even in the dim light that I usually listen by.
Markwatkiss... just guessing, but do you have a silver faceplate for the TP 2.0? My guess is that the darker colored knobs are for the black faceplate, the honey oak or lighter knobs are for the silver faceplate.
Rob