Wysłane 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 logo is shaped like a triangle facing diagonally up and right. The triangle's base is slightly dented in giving it the appearance of an arrowhead. A line runs down the center of the triangle splitting it into two halves.