Tested working on Xcode 5+
- Copy the two .dvtcolortheme files into
~/Library/Developer/Xcode/UserData/FontAndColorThemes
. You may have to create the directory if there isn't an existed one. - Restart your Xcode if it is running.
- Select Solarized Light/Dark theme in your Xcode 'Preferences - Fonts & Colors (Tab)'.