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This seems like a weird question, but here I go:
I recently found myself toying with Colour balance in Darktable (FOSS Lightroom replacement), especially to do something I have come to call "White-Alignement". What I basically do is I bring the spikes in the different colour-channels in the histogramm to align with each other to create white spikes.
Sometimes I do it with spikes (if the image has em) and sometimes merely with the edges of the area (i.e. the highlights and the shadows) with some fiddling with the midtones/gamma. I don't perfectly align all spikes, but I use them as an indicator where I need to push what.
I have the feeling as if this increases the range of colours visible in the image, makes the entire image richer or at least takes a certain colour-bias out. It doesn't always look good or work right and it certainly can't be done with every picture (especially where one colour should dominate) and can sometimes ruin certain tones (like skin tones), but it creates very pleasing results in my opinion.
Is this a normal thing to do? Is this something you do too? does it have a name or a specific purpose.
