ArcGIS Pro 2.6 API Reference Guide
CIMSymbol Class
Members 

ArcGIS.Core.CIM Namespace : CIMSymbol Class
Represents a symbol. A symbol is used to describe how a geometric shape, such as that from a graphic or feature, is displayed.
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Core.CIM.CIMObject
      ArcGIS.Core.CIM.CIMSymbol
         ArcGIS.Core.CIM.CIMMultiLayerSymbol
         ArcGIS.Core.CIM.CIMTextSymbol

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

CIMSymbol Members
ArcGIS.Core.CIM Namespace