The controls in the Spill Process section of the Primatte properties panel let you specify how to replace the spill color.
This allows you to select between the three methods of spill replacement:
• no suppression - No spill suppression is applied.
• complement - Replaces the spill color with the complement of the backing screen color.
• solid color - Replaces the spill color with a solid color of your choice.
• defocused background - Replaces the spill color with colors from a defocused version of the background image.
When solid color is selected, this sets the color to use to replace the spill.
When defocused background is selected, this area allows you to adjust the amount of defocus applied to the background buffer image.