[lubuntu-users] Does a default Lubuntu dark theme exist?

[scrooyahoo at riseup.net]

I'm playing a bit with the themes and icons and i can't really find a 
nice dark theme. That also has themed the grey window borders.

Lubuntu-dark-panel isn't exactly dark.

I now have dark panel configured with the natura color theme and that 
has a nice feel to it though the grey is still keeping it very bright.

And if i manually change the colors how do i then save the theme so that 
i can share my config?
I mean where should the theme be saved?  When i press the "create a 
theme archive .obt" button it wants me to select a directory where to 
store it, why doesn't is in point already to the directory? What 
directory should that be?  Whatever location i choose, it does not 
accept my choice.