I thought the standard theme for Exaile was a little bland and was sorely in need of polishing in comparison to iTunes, Amarok, Songbird etc. This is the result of my tweaking. Should work for exaile version .2.13+
To Install: Place the exaile.extheme file into the "/home/*yourusernamehere*/.exaile" directory and restart exaile if it is running. Make sure you completely exit exaile -- minimizing to the system tray will not change the layout.