“The vibrance in basicadj is an algo I [Aurelien] have designed. It works in RGB space and is just the same algo as the saturation, but with a penalty applied on already-saturated pixels. The dev who put it there tested its hue preservation property, and it’s fairly hue-invariant. Of course, it will darken blue a bit (no saturated blue can ever be percieved bright, that’s how our perceptual system works, just like dark yellow is actually more muddy than yellow), but for some reason, it darkens less than the Lab vibrance.”
Since basic adjustments is deprecated, and vibrance rgb is the new module, how does it compare?