ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMTextSymbol Class / HaloSize Property

HaloSize Property (CIMTextSymbol)
Gets or sets the size of the halo that extends beyond the symbol shape.
Syntax
public double HaloSize {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also