Kubuntu/KDE Uninstall
To uninstall Kubuntu Satanic Edition, it makes sense to de-select the various themes before removing the packages. Here's what to do:
Remove the wallpaper (Right-click the desktop and select "Configure Desktop")
Reset the KDE theme (/etc/kde3/kdm/kdmrc):
Theme=/usr/share/apps/kdm/themes/kubuntu
Reset Ksplash (System Settings->Look & Feel->Splash Screen)
Reset the KDM background (/etc/kde3/kdm/backgroundrc):
Wallpaper=/usr/share/wallpapers/kubuntu-wallpaper.png
Removing the Packages
sudo apt-get remove \ kubuntu-satanic \ kubuntu-satanic-wide \ satanic-wallpapers \ satanic-wallpapers-wide \ satanic-plymouth-theme \ satanic-kde-themes
Notes
If the standard Ubuntu boot screen doesn't appear after a reboot, run the following commands:
sudo update-alternatives --set default.plymouth /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth sudo update-initramfs -u

