Black Flag's visual imagery and artwork complemented the themes found in the band's music. Greg Ginn's brother Raymond Ginn, under the pseudonym Raymond Pettibon, created the artwork for all of the band's studio releases with the exceptions of "Damaged" and the "TV Party" single, as well as providing artwork for the band members to transform into merchandise and gig flyers. When the band found it necessary to change their name from Panic in 1977, it was Pettibon who suggested the new name Black Flag and designed their iconic logo: four vertical black rectangles comprising a stylized rippling black flag. The logo evoked a number of meanings: it was the polar opposite of a white flag of surrender, as well as a symbol for anarchism and a traditional emblem of pirates. As the band gained popularity the logo was graffitied on numerous highway overpasses and other public and private surfaces in and around Los Angeles, drawing the attention of the authorities and contributing to an increase in police presence at Black Flag shows.