Theme or themes may refer to: Theme (Byzantine district), an administrative district in the Byzantine Empire governed by a Strategos. Theme (computing), a custom graphical appearance for certain software. Theme (linguistics), topic. Theme (narrative), the unifying subject or idea of a work. Theme Building, a landmark building in the Los Angeles International Airport. Theme music a piece often written specifically for a radio program, television program, video game, or film, and usually played during the intro, opening credits, or ending credits.
https://en.wikipedia.org/wiki/Theme