ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMLegend Class / DefaultLegendItem Property

DefaultLegendItem Property
Gets or sets the default legend item used as the basis for new legend item creation.
Syntax
public CIMLegendItem DefaultLegendItem {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also