eLuna is a GTK+3 theme that comes with a dark style and colored text (like for instance, blue text on the Unity panel/topbar).
eLuna brings a dark sidebar for Nautilus, as well as rounded search fields (in Nautilus), metal-like ON/OFF buttons, as well as various eyecandy bits.
The theme is properly integrated into Unity, thus displays its close/minimize/maximize buttons on the Unity panel when in fullscreen mode.
How do we install eLuna?
Download the package, unpack it and copy the resulted folder to
.themes (create it, if it doesn't exist) or