Thought this could use some additions

I downloaded your plugin and great work by the way your use of codemirror was excellent.  I simply added a way for users to select between your default theme and a new one I created by copying your CSS making changes based on the Solarized theme.  I also added a theme selector to the user profile in your primary plugin file.  This way users have the choice and in the future users could even submit new themes to you for review.  I included both a minified and unminified css so you could easily review the changes.  

It's up to you if you want to add my revisions to your base but I hop you'll consider it!