This is the Rozdzielczość ekranu icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
This appears to be a rectangle situated vertically. There is a vertical line inside the rectangle, going from the bottom left corner of the rectangle to the top right corner. There are two small triangles, one connected to the bottom left of the line and one connected to the top right end of the line.