I click the "Get New Themes" button and recieved a list of desktop themes. I selected the Diamond theme and clicked the install button but nothing seems to happen. When I downloaded it from their website and ran the install from terminal, it said it installed but does not show up in the available themes to select and apply. It only shows the "Air" and "OpenSUSE" themes.
How do I get this theme to apply?

Running Linux 3.16.7-7desltop, OpenSUSE 13.2 (Harlequin) x86-64, KDE 4.14.5