ArcGIS Pro 2.6 API Reference Guide
Symbol Property (SymbolStyleItem)
Example 

ArcGIS.Desktop.Mapping Namespace > SymbolStyleItem Class : Symbol Property
Gets or sets the ArcGIS.Core.CIM.CIMSymbol of the symbol style item.
Syntax
public CIMSymbol Symbol {get; set;}
Public Property Symbol As CIMSymbol
Exceptions
ExceptionDescription
This property must be called within the lambda passed to QueuedTask.Run
Example
SymbolStyleItem symbolItem = null;
CIMSymbol symbol = await QueuedTask.Run<CIMSymbol>(() =>
{
  return symbolItem.Symbol;
});
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

SymbolStyleItem Class
SymbolStyleItem Members