An Orange-themed derivation of https://github.com/horst3180/arc-theme
Some elements might not work with this theme, if you're having trouble please type "gnome-shell --version" into the terminal, then from the answer determine which package of the theme you need for exemple my answer was "GNOME Shell 3.16.4" so you've got to select the 3.16 package and so on.
https://github.com/eti1337/arc-theme-orange < Github
This is a WiP so if you find any bug or issue please report them on the Github repo.
Have a nice day