Komedia 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 comedy icon is a face that looks similar to an inverted triangle. The two eyes are semi-circle shaped, and filled in black. The mouth is open in a smile, with the corners upturned in an almost half moon shape.