Hue - allows rotating the hue, values are in tenths of a degree.
Brightness - controls the base value of the RGB channels. 1000 = 100%
Saturation - controls saturation of colors. 1000 = 100%. If this value is negative
the colors will be reversed producing a negative image. Setting to 0 removes
all color while maintaining the luminance.
Contrast - controls the gain for all channels, 1000 = 100%
Transform matrix - all controls are used to form one matrix of values to apply to all pixels.
This area displays the values, but can not alter them.