When using tone curve in Darktable, I usually leave “scale chroma” set to “automatic” to prevent perceptual under- or over-saturation of the result. However whenever I do stronger curve changes, I usually find that the chroma scaling is just too strong - the saturation is increased or decreased too much and to my eyes it just does not remain perceptually the same as the original. Did anyone else notice this?
For simplicity I’d like to avoid having to change the a/b curves manually, it would be great to have a “strength” slider for the auto chroma scale. Or is there some easy workaround? Sometimes the “automatic in XYZ” or “automatic in RGB” options provide better (less saturated) results, but it’s not ideal.