Specifies the display resolution in pixels for all thumbnail preview images.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | 3 | 
Whether preview images are saved in drawings is controlled by the THUMBSAVE system variable.
|  
			  Value  | 
 
			  Description  | 
|---|---|
|  
			  0  | 
 
			  64 x 64  | 
|  
			  1  | 
 
			  128 x 128  | 
|  
			  2  | 
 
			  256 x 256  | 
|  
			  3  | 
 
			  512 x 512  | 
|  
			  4  | 
 
			  1024 x 1024  | 
|  
			  5  | 
 
			  1440 x 1440  | 
|  
			  6  | 
 
			  1600 x 1600  | 
|  
			  7  | 
 
			  1920 x 1920  | 
|  
			  8  | 
 
			  2560 x 2560  |