When you modify Saturation, Gamma, Gain, Offset, and Contrast, you can colour correct the shadows, midtones, and highlights ranges in the image individually or all together.

To colour correct shadows, midtones, or highlights:

1. Select the luma range you want to modify.

   
   

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

   NoteMonochrome, Negative, Chroma Suppression, and RGB Rewiring always affect the Master tonal range.