To install the theme move it into
~/Library/Developer/Xcode/UserData/FontAndColorThemes/, creating any directories you need to along the way.
At some point, if I ever get round to it, I will create a proper installer. For now though, you will have to move it yourselves.
I have purposely not chosen a font for the theme, I have set it to use Xcode's default
Menlo. It is easy enough to change it to your preferred font in the
Fonts and Colors pane in the Xcode preferences.
##So… What does it look like?!
I have added a quick screenshot which I feel is fairly representative, if anyone has any suggested open source files that would be a good demo to screenshot do say.