: Allows you to apply different masking parameters to different parts of the image, so you can treat a sharp silhouette differently than a soft, out-of-focus edge. Color-Based Selection
One of the most dreaded problems in masking is the "halo effect" – a leftover border of the original background. Fluid Mask 3 v3.2.4 includes a slider that shifts edge pixels toward the foreground color, eliminating green or blue spill from a chroma key or natural scene. Vertus Fluid Mask 3 v3.2.4