The color(s) black, red, white, light yellow, and blue is/are claimed as a feature of the mark.
"PPO FOR DOCS"
The mark consists of the letters "PPO" in black and outlined in white on a blue background, the number "4" in black inside a red circle on a white background, the letters "DOCS" in black against a light yellow background with the "S" made to appear to look like a dollar sign. The entire image has a background that is part blue and part yellow with two white lines on top and bottom of the letters "PPO" and two blue lines on top and bottom of the letters "DOCS". The entire mark is surrounded by a blue border.
PPO FOUR DOCS; PPO FOR DOCS