The Color Removal effect removes pixels with colors close to selected color (sets alpha values to zero). The background color can be set using the Background button in the tabbed toolbar. Add a Color Removal layer by clicking the Color Removal icon on the Tools tab of the 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.