The color transfer filter doesn't seem to do anything. We might need to disable it for 2.4.
Git commit 11e7fb595fbe189f3887656fd4aff26556473e80 by Cyrille Berger. Committed on 03/01/2012 at 12:51. Pushed by berger into branch 'master'. fix color transfer filter applying only on the first column and a pixel out of two M +2 -2 krita/plugins/filters/fastcolortransfer/fastcolortransfer.cpp http://commits.kde.org/calligra/11e7fb595fbe189f3887656fd4aff26556473e80
I checked and it seems to work fine for me now.