No Monthly Fee Debit Card
DCRAW library, gimp ufraw-plugin.

Look for red in hair. Look at skin color.

Image on the right was made using custom color balance made in camera, using ExpoDisc.

Image on left began the same, then go looking for Color Profile, drop down list, select Color Matrix to use X3F's color matrix. I was wondering why the embedded jpg had better color than I could get from a DNG!