| TYPE | NAME | DESCRIPTION |
|---|---|---|
| INT32 | run_mode | Interactive, non-interactive |
| IMAGE | image | Input image (unused) |
| DRAWABLE | drawable | Input drawable |
| FLOAT | refraction | Lens refraction index |
| INT32 | keep_surroundings | Keep lens surroundings |
| INT32 | set_background | Set lens surroundings to bkgr value |
| INT32 | set_transparent | Set lens surroundings transparent |