As Iotero said, the theme is part of a complete SD image for the pi, which includes this theme.
The layout is great it only has a Video/snap covering all the background and a list box on the right which hides automatically after a couple of seconds, I just want to change that list box for a vertical wheel, which should be so complicated for someone who the right knowledge handcoding layouts for AM.
I don´t know if I can say where I got it from, someone could consider it as spam. but the full name of the sd image is regalad & wdg supreme build v2.
Anyway, I don´t know how to ask regalad directly to do that, there is no option in that website to do it