Similar to the normal Crush Blacks & Whites effect, but only affects the alpha channel. Crushing the blacks can remove lingering areas of your keyed area, while clamping the white can help to fill transparent areas in your subject.
- Black: Increasing this slider will raise the threshold below which shadow areas will be pushed into pure black, ensuring they are completely transparent.
- White: Decreasing this slider lowers the threshold above which highlights will be pushed into pure white, ensuring they are completely opaque.