This is a picture of a graph with a hill shaped curve. at the top of the curve is a dotted line showing the maximum value of it. it goes up and then starts decreasing at the dotted line
This Histogram icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.