Azenis Orange is a dark GTK theme with orange elements.
What is Azenis I hear you say? Azenis was originally a windowblinds theme created by J.J.Ying, now in its second carnation it has become one of their most prominent themes with almost 200,000 downloads. It has also been ported to KDE by Ezy where it has proved equally successful. I then created a version of the theme for Gnome and it also seems to have done quite well. This is an orange version of the original port that i created for Halloween 2009 at the request of Karmicbastler.
-Gtk and Metacity Themes
1. Download the file and place on your desktop
2. Open a terminal and run these commands:
sudo cp -r $HOME/Desktop/Azenis-Orange /usr/share/themes
3. Open the theme manager, you can now select the Azenis-orange theme, when you click on it, it will apply the gtk and metacity themes as well as the icon and cursor themes if you have them installed. It will also give you the option of using the wallpaper provided with this theme.