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- In the Map ribbon, in the Layer group, click Basemap and select Light Gray Canvas.
- In the Contents pane, uncheck the World Light Gray Reference layer to toggle it off.
- In the Catalog pane, in the Databases folder, expand the LayoutTutorialData.gdb geodatabase.
- Right-click the BlockGroupCensusData feature class and select "Add to Current Map."
Editing Class Boundaries
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