This icon is a part of a collection of Triforce flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
The icon is a depiction of the triforce, a game element from the popular video game series "The Legend of Zelda" produced by Nintendo. The triforce is itself composed of three triangle arranged to form a new triangle with a triangle-sized gap at the center.