A TextMate, Atom or Sublime Text 2 theme based on the default Xcode theme. Remember than this is only a color scheme, to have the full look of Xcode you will also need to add Menlo Regular 11.0 as your font.
Atom (in Preferences->Themes search for xcode-theme):
TextMate:
Sublime Text:
Atom -> Preferences -> Themes and type Xcode. Alternatively you can download the theme files, decompress the contents and move the resulting folder to ~/.atom/packages/.
Download and unzipp this file, double-click or open the Xcode default.tmTheme file and TextMate will take care of installing it for you.
Download and unzipp this file, then add Xcode default.tmTheme to your Color Scheme - Default folder.
In OS X:
~/Library/Application Support/Sublime Text 2/Packages/Color Scheme - Default
In Linux:
~/.Sublime Text 2/Packages/Color Scheme - Default
In Windows:
%APPDATA%\Sublime Text 2/Packages/Color Scheme - Default
