Idea of Indent Icon
The icon shows five horizontal lines on top of each other. The middle 3 lines are shorter than the top and bottom. To the left of the 3 shorts lines is a triangle with it's base aiming left and its point aiming right.
This page contains the Indent vector icon, as well as variations of this icon in different visual styles, and related icons. All icons are in the flat vector style, however, differ by the line thickness, fill, and corner radius.