Dark colored Look&Feel ?

Hi,
I've switched to a dark window theme on my operating system and I've switched to the dark editor theme in IDEA as well.
However, the Alloy Look&Feels do not offer a dark version - therefore, the window background of IDEA is still grey.
I've tried using the GTK+ Look&Feel - while this solves the problem of the greyish window background, the tabbed tool windows do not work well with the GTK+ Look&Feel.

Is there any known dark Look&Feel that works well with the IDEA UI ?
If there is any workaround please share it - otherwise I'd create a JIRA ticket for adding a dark theme to IDEA.

Thanks for your help!
Christian