After we got the background/wallpaper switched lighter, seems the ksplash theme is now too dark and doesn't match anymore.
Yes, this affects only updated systems though. I'll look if we can do something about it for the existing installations.
This is a minor issue affecting only a small portion of users that installed Fedora 19 during the testing period when there was the darker background version included. You can fix this issue yourself, please run the following command: rm -rf "/var/tmp/kdecache-$USER/ksplashx/SchoedingerCat*" or optionally change $USER to * to clear the cache for all users.
Or rather, this command: find /var/tmp/kdecache-$USER/ksplashx -maxdepth 1 -name 'SchroedingerCat*' | xargs rm -f