Effect
Color Balance
Shift shadows, midtones and highlights toward cooler or warmer casts.
Colour balance is the classic three-way grade: shift shadows, midtones and highlights toward cooler or warmer casts. Film labs did this with filtration; video suites did it with lift and gain; still apps kept the language.
It is useful for correcting mixed light and for intentional mood. Push shadows cool and highlights warm for a split-tone feel without a separate tool.

Properties
Red
cyan<->red
Green
magenta<->green
Blue
yellow<->blue
Keep Luma
preserve luminance
Gamma
working gamma
Command line
Requires Rethings Pro. Install the tool from Rethings → Install Command Line Tool…
rethings apply --effect color-balance --set red=0 --set green=0 -i input.jpg -o output.png










































