[action] Color Adjustment

Adjust the color balance of the images.
Separate R, G, B and Master value adjustments.
Have four sliders defaulting in the center, zero value. By moving the slider on the left
or right you add or subtract from that color.
Suppose for example you know that certain images for certain reason have a green cast to them
(because of lighting, sensor, scanning, developing, etc). You find the amount of green that needs
to be removed by let's say Gimp in one image and then repeat the adjustment with Phatch
to all of them. If you can save the setting, you can use it to color correct photos that will have color
casts in the future.