Gets a value that indicates whether the designer theme is read-only.
Assembly: System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)
If the WorkflowTheme that the DesignerTheme is initialized with is not a null reference (Nothing in Visual Basic), obtains its value from the WorkflowTheme.ReadOnly property. If the WorkflowTheme is a null reference (Nothing), is false.
If the WorkflowTheme is assigned to the WorkflowTheme.CurrentTheme, the property is set to true, and properties on all designer themes associated with this theme cannot be changed. If required, properties can be set after loading the theme but before assigning it to the CurrentTheme.