"Invert" checkbox for Mask: Simple Shape

…read the Road Map before posting… …Check!

The Mask: Simple Shape would be so much more wonderful than it already is if it had an Invert Checkbox as Mask: From File does.

Add filter Alpha Channel: Adjust filter after the Mask: Simple Shape and click Invert.
Invert is different for Mask: From File because the inverted must feed into its Softness.