ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMPointSymbolCallout Class / PointSymbol Property

PointSymbol Property (CIMPointSymbolCallout)
Gets or sets the symbol that will be drawn as the background behind the text. The most common use case for this type of symbol is a highway shield. When drawing a highway shield this property will be the shield itself without numbers.
Syntax
public CIMPointSymbol PointSymbol {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also