I made a quick mod of the standard Ubuntu Ambiance theme to change orange and brown to different shades of blue. I also commented out the Gnome Panel png to allow for a transparent panel. Credit goes to the Ubuntu team that created the original, all I did was change the colours. Works well with Faenza's fantastic icons or the blue gnome-brave-icon-theme. Enjoy.
***I fixed the install issues in this package, due to inconsistent theme names in the base files. If you install from the Gnome Appearance panel, everything will go smoothly now. Sorry if I caused anyone headaches.
***Caveat: The Ambiance.Blues folder must be copied to /usr/share/themes directory for full implementation across all applications (e.g. Synaptics Package Manager).