The SimpleFillSymbolStyle can be one of:
| Constant | Description | 
|---|---|
Enums. | (0) Backwards diagonal lines fill. | 
Enums. | (1) Horizontal/vertical lines fill. | 
Enums. | (2) Backwards/forwards diagonal lines fill. | 
Enums. | (3) Forwards diagonal lines fill. | 
Enums. | (4) Horizontal lines fill. | 
Enums. | (5) No fill. | 
Enums. | (6) Solid fill. | 
Enums. | (7) Vertical lines fill. |