ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMBackgroundCallout Class / Margin Property

Margin Property (CIMBackgroundCallout)
Gets or sets the text margin defining the space around the text that is accounted for in background creation.
Syntax
public CIMTextMargin Margin {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also