Color is not claimed as a feature of the mark.
The mark consists of a small, light colored circle on top of a second, larger gray circle, on top of a larger dark circle. The top, smallest circle, has a feathered edge. The base of the bottom dark circle is cut off. Three wave designs, stacked on top of each other, are layered over the three circles. The bottom wave is larger than the second, which is larger than the top third wave.