Operation Manual

Pictures, Lines, and Shapes 173
3. Adjust the settings to suit requirements, especially adjusting Brush
Size to paint larger or more intricate regions.
Change the Mode drop-down menu from Select to Protect to
protect painted regions from masking (i.e., the inverse of the
Add Region option).
4. Using the on-screen cursor, paint regions (in green for adding; red for
protecting).
If you've not been as accurate as you'd like while painting, you can
click
Remove Regions then paint over the unwanted painted
regions.
5. Click
to save your masking changes.
The mask button changes to yellow when a mask is applied.