When you modify saturation, gamma, gain, offset, and contrast, you can color correct the shadows, midtones, and highlights ranges in the image individually or all together.

To color correct shadows, midtones, and highlights:

1. Under Ranges, select a luma range to modify.

   Click:	To Modify:
   Master	The entire image. Modifications made in the Master range are applied after individual range modifications.
   Shadows	Dark areas in the image.
   Midtones	Midlevel areas in the image.
   Highlights	Light areas in the image.