I use the smudge tool very often in GIMP while painting. Unfortunately, the algorithm tends to generate a much darker version of what the smudged color ought to look like. For instance, a normal smudge on GIMP looks like this:
But I want the smudged color to be a lighter yellow, sort of like this:
In general all smudged colors appear darker and I understand this has something to with GIMP working with sRGB colors as opposed to RGB. But I'd really like to know what setting I need to tweak in GIMP to correct the smudge algorithm (maybe blur too, but I use smudge much more).
[ I assumed sRGB takes the square roots of the original value, so when the smudge tries to average colors between two pixels 'a' and 'b', it takes $ (\sqrt{a} + \sqrt{b})/2 $, which is darker than $ sqrt(a/2 + b/2)^2 $. ]
