ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMglTFMarker3D Class / Thumbnail Property

Thumbnail Property (CIMglTFMarker3D)
Gets or sets the representative image of the marker as a base64 encoded string.
Syntax
public string Thumbnail {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.3 or higher.
See Also