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The panel on the left side of ArcGIS Pro is called the Contents pane. At the top of the Contents pane, there is a series of seven buttons. By default, the leftmost button is selected, List by Drawing Order.
When this button is selected, the order in which the layers are listed corresponds to the order in which the layers are visually stacked in the Map view. To test how the drawing order works, let's reorder the layers.
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