Gray Libra Theme 15.04 built on GTK 3.14.
Gray Libra Theme Homepage: Gray Libra Theme @ Gnomelook
Unity theme for Ubuntu 15.04 based on Libra 2.0 by dolkand.
You can download Gray Libra Theme directly from the Ubuntu Alive Dropbox below.
The icons used are called Vibrancy Colors and can be seen at Ubuntu Alive below.
The Wallpaper used is called Overcast Gradient #7 from Charlie Henson and can be downloaded from DeviantArt below.
That's all please enjoy this wonderful Theme.