RGB Color Corrector (Color Correction) – Like RGB Curves, this effect adjusts
tonality and color within individual color channels. The major difference is that it
uses slider controls rather than curves. The luminance sliders are similar to those in
the Fast Color Corrector and the Three-Way Color Corrector.
What makes RGB Color Corrector a bit counterintuitive is that its tonality properties
– Gamma, Pedestal and Gain – work a bit differently than similar properties in other
effects – Black/Shadows, Gray/Midtones/Gamma and White/Highlights.