ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMProportionalRenderer Class / BackgroundSymbol Property
Version

BackgroundSymbol Property (CIMProportionalRenderer)
Gets or sets background symbol features are drawn with underneath the proportional symbols.
Syntax
public CIMSymbolReference BackgroundSymbol {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also