ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMCompositeCallout Class / DartSymbol Property

DartSymbol Property (CIMCompositeCallout)
Gets or sets a symbol used to draw the dart. This is only used if LeaderLinePercentage is less than 100%.
Syntax
public CIMPolygonSymbol DartSymbol {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.6 or higher.
See Also