This icon is a part of a collection of MPG 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.
It's the capital letters 'MPG" drawn inside of a rectangle. The rectangle is drawn to look like a sheet of paper with the upper right corner creased and folded down to the front. The letters are centered from left to right and closer to the bottom than the top.