Controls whether alternate scale representations are temporarily displayed in a dimmed state when an annotative object is selected.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | 1 | 
|  
			  Value  | 
 
			  Description  | 
|---|---|
|  
			  0  | 
 
			  Off  | 
|  
			  1  | 
 
			  On  | 
The dimming intensity is controlled by the XFADECTL system variable.