ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / StyleProjectItem Class / IsCustomStyle Property

IsCustomStyle Property
Gets whether the style item is a custom style.
Syntax
public bool IsCustomStyle {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also