Ultramarine blue and Air Force yellow are the Air Force colors. Blue alludes to the sky, the primary theater of Air Force operations. Yellow refers to the sun and the excellence required of Air Force personnel. The sphere in the center indicates the unbroken line of the Secretary of the Air Force Office of Public Affairs. In that circle, the three stars above the field of clouds represent the three major functions of the Air Force's Public Affairs - Internal Communication, Media Operations, and Civic Outreach Operations. The outpointing arrows represent the passing of information to the Air Force, its members, and persons related by affiliation or desire to the US Air Force ? the mission of the Air Force Public Affairs Agency (AFPAA). The smaller inward pointing arrows symbolize the input of information to the AFPAA from the Air Force and its leaders.