When I tried to use Krita a few months ago I couldn't set the white point in the levels tool. I looked it up and the tool apparently doesn't exist. That makes it awful for processing scanned artwork in my workflow.

Soooo, The GIMP.

[–] Reptorian@programming.dev 2 points 4 days ago* (last edited 4 days ago) (1 children)

I use Levels filter tool for that in Krita. Already non-destructive.

[–] Flamekebab@piefed.social 1 points 4 days ago

Here's what I found when I was trying to do this:
https://krita-artists.org/t/how-to-set-white-balance-according-to-a-specific-point/52297/