XSplash Background Settings is an utility that changes the background image for XSplash and the login screen (GDM). It provides easy changing of the background image and an optional daemon, that keeps xsplash and gdm background consistent with the desktop wallpaper.
1. Go to System -> Settings -> XSplash Background Settings and choose "Use default background" to restore default XSplash.
2. Remove xsplash-background-settings through package manager.