If you love Sublime Text 2 and the Monokai Color Style, here's a similar theme/skin for the Arduino IDE. There are not enough system variables to make it exact, but it's much better than the default.

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####INSTALLATION

1. PREFERENCES.TXT
   On Windows, located here: %AppData%\Roaming\Arduino replace your preferences.txt with mine.
2. THEME FOLDER
   On Windows, located here: ..\arduino-1.0.5\lib\ replace the theme folder inside (making a copy of the original in case you hate my changes!) This folder contains a 'themes.txt' file with the bulk of the changes (mostly colors). Buttons and tabs are stored as image files, which have been modified to fit the color scheme

####PSD 'BUTTONS' FILE The theme folder also includes a Photoshop (.psd) file for the buttons which includes a saved selection for easier changing of the background. This can be accessed through the 'Channels' panel.

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[ all code available under Creative Commons BY-NC-SA license - feel free to use but please include credit to all authors ]

####CREDITS

1. Images - Jeff Thompson https://github.com/jeffThompson/DarkArduinoTheme
2. Monokai Styling (Theme.txt, Preferences.txt) - Technobly https://github.com/technobly/MonokaiArduinoTheme