Opacity Brush Panel Flyout Menu
When expanded, the panel shows the size control, opacity control, roundness/angle control, reset mask area, and invert mask button.
Resets the opacity mask(s), just as clicking the Reset Mask button on the panel would.
Inverts the opacity mask(s), just as clicking the Invert Mask button on the panel would.
By default, Opacity Brush automatically extends an raster opacity mask if the art to which it belongs is made larger. However, if that preference is turned off, choosing this menu item will manually extend it.
Removes the currently selected opacity mask(s). If the art had an existing opacity mask before being brushed by the Opacity Brush, only the raster portion of the mask that was created by the tool will be removed.
Brings up the Preferences dialog (see Opacity Brush: Preferences).