A legend tells what each plot represents. Just like on a map, the legend helps the reader understand what they are looking at. For a line graph for example it tells us what each line represents.

The style and layout of the legend can be customized using a set of props. width and height set the dimensions of the container that wraps the legend, and layout can set the legend to display vertically or horizontally. align and vertical_align set the position relative to the chart container. The type and size of icons can be set using icon_size and icon_type.