ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMSymbolLayer Class / ColorLocked Property

ColorLocked Property
Gets or sets a value indicating whether the color set at the basic properties level is applied to the symbol layer. If the symbol layer is color locked then changes made to the color in the basic properties will not be applied to the symbol layer.
Syntax
public bool ColorLocked {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also