Controls the transparency of the preview generated while using SURFBLEND, SURFPATCH, SURFFILLET, FILLETEDGE, CHAMFEREDGE, and LOFT.
| Type: | Integer |
| Saved in: | Registry |
| Initial value: | 60 |
Valid values range from 0 to 90, where 0 is the lowest transparency value (opaque) and 90 is the highest transparency value.