I've been working on my bluebrothers emerald-theme http://desm0tes.deviantart.com/art/bluebrothers-274823472 and created a second version of it:

Left border has been turned into transparent white with an additional small blue border and another small black border has been added at the edge of the window.
The rest is just like in bluebrothers, so credit still goes to http://gnome-look.org/content/show.php/DH4?content=143441 for the idea and http://gnome-look.org/content/show.php/miNGue+-+minimal+glass?content=106745 for the great buttons.