Szawa z drzwiami przesuwnymi and other 85,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
The outer shape of the icon is a rectangle that is slightly taller than it is long with two small rectangular feet on the bottom. Inside the rectangle, there are two vertical parallel lines with a short vertical line to the left of each. There are four short, horizontal lines inside the right side of the outer rectangle.