White balance

  1. I’d like a different way of setting white balance, which allows adjusting temperature and tint simultaneously. Something like:
    image

  2. I’d like to be able to adjust tint for jpg files as well. I know I can use tones curves as a workaround, but the same slider that is available for raw processing would be nice. BTW, using the eye dropper (pick color) adjusts tint as well as temperature for jpg, so the functionality is already there, just not easily accessible.

Have a look at Picture Window Pro for a powerful way to adjust colots. See section “Color Correction / Color Shifting” in this blog

The color transformation is in the feature called "adjust."The product’s original documentation is here:

PWP’s tool is particularly good, because it is multipoint : several corrections apply in parralel to different image areas.