Rubymine-stellar-theme is a project mainly written in ..., it's free.
Stellar theme / colors scheme for RubyMine
Installation:
Quit Rubymine
Clone the repository into a directory of your choice
git clone git://github.com/christianbradley/rubymine-stellar-theme.git
cd rubymine-stellar-theme
ln -s stellar.xml ~/Library/Preferences/RubyMine30/colors/stellar.xmlRestart Rubymine
Select the new theme!
More directions here... RubyMine Extensions and Themes
Screenshot:
Enjoy!