Iceberg is a dark blue color scheme, originally for Vim. It brings a cool-headed perspective for your happy coding!

See the official site for more information.

1. Download the latest release.
2. Move Iceberg.xccolortheme to ~/Library/Developer/Xcode/UserData/FontAndColorThemes/.
3. Relaunch Xcode.
4. Xcode > Preferences... > Fonts & Colors and select Iceberg.