There are two parallel lines that form three sides of a rectangle with the bottom of the rectangle cut short. There are two parallel lines pointing down from the top of the rectangle and two curved lines connect the two lines at the bottom.
This is the Swingset 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.