A skull and crossbones with the bones forming an "X" pattern with the skull laid directly over the center of the "X" pattern. The skull has a bullet entry hole in the right forehead (viewers left side). The design will always be white with black outlining.
The drawing stippling is indeed a feature of the mark and is not intended to indicate a color. The drawing will always appear in white and black, and never in a color. The stippling is intended to act as a shade or shadow effect, instead of drawing solid lines to outline the skull bones of the mark.