Once you’ve added a mask, you can add or subtract from the masked area.
Click on the Mask actions dropdown to find the following controls:
- Fill. This option covers your entire image with a mask. After using Fill, you can select Paint and use the Erase mode to subtract from the mask.
- Clear. This option removes your mask entirely. After clicking Clear, you can use the Paint Mask, Gradient Mask, or Radial Mask tools to add details to the image.
- Invert. This option inverts any mask you’ve created to reverse its opacity and transparency values.
- Copy. This option copies the current mask to the clipboard. To use this copied mask, create a new mask using any tool and paste it into the new tool mask.
- Paste. This option pastes the current mask stored on the clipboard for use on another tool mask.
- Show. This option controls the visibility of the mask. Clicking Show displays the mask as a red overlay. You may continue drawing your mask for greater precision while this overlay is shown. Click Show again to remove the red overlay.
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