
Unpack the tarball keeping the directory structure:
oxygen-dsx-+
           |
           +--dialogs--+
           |           +--background.svgz
           |           +--kickoff.svgz
           |           +--shutdowndialog.svgz
           |           +--...
           |
           +--opaque --+...
           |
           +--widgets--+
           |           +--background.svgz
           |           +--tooltip.svgz
           |
           +--colors
           +--metadata.desktop

Copy the directory oxygen-dsx and its content into your KDE configuration
usually: ~/.kde4/share/apps/desktoptheme

If you don't want to use the default colors,
please remove the file "colors" prior to activating this theme.

Open the KDE Systemsettings and choose "Oxygen DSX" in your workspace appearance.

Enjoy
