No theme. I shuffle through about 100 desktop landscape pics at 10 minute intervals. I use the Aero like look I have grown accustomed to on Win 7. I do show other shots in other threads. I dual booted Win 7 and Win 8 CP and dragged most of my landscape pics directly from my Win 7 desktop themes into a "themes" folder I created, then further moved them to my Win 8 CP OS. This is one reason why I do not spend much time on Metro, I do not like the look, the colors, the lack of anything fun to look at. It's just plain ugly IMHO.