The Color Removal effect removes pixels with colors close to selected color (sets alpha values to zero). Add a Color Removal layer by clicking the Color Removal icon on the Tools tab of the toolbar. The background color can be set using the Background button in the tabbed toolbar.
- Use the embedded color picker to select a color to remove from the image.
Selecting a color to remove is made even easier by clicking on the Eyedropper button and clicking directly on the image.
- The Tolerance slider sets how similar pixels have to be to the selected color for them to be removed.
- The Fuzziness slider slider adjusts the sensitivity of color spill correction.