This is a gray KDE splashscreen for Slackware Linux.
The special thing is that it is fullscreen and that there is no icon bar which is in generel standard.
This is an unostentatious KDE splashscreen.
To install it, just extract the package in the directory /home/you/.kde/share/apps/ksplash .
The image comes from http://www.schultz-net.dk/.