TronLight, Tron with lighter comment text

Dayle,

Thank you for the hard work on these themes. I especially love the Tron theme you wrote. It's a nice mellow theme, that definitely jives with the Tron franchise. I did have one issue with the theme, and it had to do with the color of the comment text.

I work in a brightly lit office, using glossy displays, and the comment text was often hard to read during the day. By simply brightening the comment text a bit, it became much easier to read the text while still remaining within the Tron-based theme.

I've decided to submit this pull request to have the theme merged in, and to then be provided by your ST2 package. I've added my name to the Copyright and altered the year from 2012 to 2012-2013.

Thanks again for the hard work and let me know if you have any feedback that would be beneficial before merging this in to your themes.

-Tim

![TronLight](https://f.cloud.github.com/assets/787332/185722/3c454586-7d10-11e2-882c-73a3a32f9cdf.png)