Legend

The Legend pane (if this tab is not visible see Additional views) provides a map with explanatory notes that describe what objects in the map represent, for example, highways, primary and secondary roads, and so on. This is the typical sort of legend that can be found on most paper maps. Entries in the Legend pane are added automatically when you add a new layer. If the data source is complex, the entries in the Legend pane are displayed according to your choice of features when you import the file. For example, if you import a data source and choose Transportation (Roads) as a feature, the Legend pane will show an entry for secondary routes, causeways, and trails. You can organize your map legend differently using the advanced properties of the layers, such as Legend Category and Legend Group .
The following figure shows an example of the Legend pane.
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Legend
pane
Legend pane