color_zones hue

Software darktable
1

I would like to ask which part of the file is the source code for the function in this picture
U({FQ@OCFVBZGUOXPW()9

2

This looks like darktable, but you’ve posted in the RawTherapee category. Did you mean to do that?

3

this is darktable

YDF6P@}TQEH8WF~XVOT2F)7
YDF6P@}TQEH8WF~XVOT2F)71103×698 344 KB

i try to learn how to change a single color without losing color

4

The curve shows how each pixel in your image is changed (in your screenshot all non yellow pixels are changed): middle horizontal line = no change.
If you want to change a precise range of colors you can do this by adding further nodes or limit the range via parametric masks.

5

emm,，may i ask how to export color curves

6

Please have a look at the manual darktable 4.6 user manual - color zones .
Or you may want to have a look at darktable ep 048 - The Color Zones module - Invidious .

7

https://docs.darktable.org/usermanual/3.6/preferences-settings/presets/

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