Highlighting of function names and a default theme.

As title says :)

![8b49ffca37f643c8a147082](https://f.cloud.github.com/assets/808593/467112/28f48d50-b66f-11e2-8374-24318de86b4d.png)
![cc9f7ca957e24c59bef6c7b](https://f.cloud.github.com/assets/808593/467113/2a10280c-b66f-11e2-95e9-85b71bfa590f.png)