I have very often the problem to adjust skin tones under different light conditions. Typically I have one picture where I’m happy with the skin tone. My idea is to copy this skin tone from one picture to the other with an eyedropper.
select the skin tone in one picture with an eyedropper and save it
go to second picture and restore skin tone
Functionality is similar to white balance feature but with skin tone instead of neutral gray tone.
This feature could also be more generic by saving a color in one picture and restoring it in another one.
That’s a nice idea. Apple’s aperture used to have a white balance tool that could use skin tones instead of neutral grey as a reference so there was some automatism built in to remove color cast on skin tones which worked very well.