This icon is a part of a collection of Scalanie plików 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 logo displays two squares joined at a corners. The top square has an arrow pointing down and skewed to the right, pointing at the bottom square. The bottom square has an arrow pointing up and skewed to the left, pointing at the top square. The points in which they're joined have a dashed line, indicating they are merging together.