My Compliments and an observation Rated 5 out of 5 stars

Excellent theme, works well for me even with the nightly v13.0a1. One small problem with specifically with the Nightly, when installed the icon in top left corner defaults to the Ninja icon rather than the Nightly globe. At first I fixed this with a usercontent.css but have since discovered there is a bug in the browser.css file in the Chrome12 folder of the installed extension.

As installed the code reads --

#main-window[titlemodifier_normal="Nightly"] #appmenu-button,
#main-window[titlemodifier_normal="UX"] #appmenu-button {
background: url("chrome://browser/skin/tabbrowser/profile_avatar_ninja.png");
}

I suggest the code should read --

#main-window[titlemodifier_normal="Nightly"] #appmenu-button {
background: url("chrome://browser/skin/tabbrowser/Nightly.png");
}
#main-window[titlemodifier_normal="UX"] #appmenu-button {
background: url("chrome://browser/skin/tabbrowser/profile_avatar_ninja.png");
}

The Browser,css file in the Chrome folder has the same code but for v13.0a1, changing the file in Chrome12 is what works for me.

Thanks again for a great theme.

This review is for a previous version of the add-on (10.2). 

Thank you for correcting