ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping.Controls Namespace / MapControlContent Class / BackgroundColor Property

BackgroundColor Property (MapControlContent)
Gets and sets the background color for the MapControl. This property only applies to layer and item content.
Syntax
public CIMColor BackgroundColor {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.3 or higher.
See Also