I appreciate submissions and tips or feedback (haakon@underbakke.net). I use nothing but pure CSS and a bit of jQuery here and there. Definitely not hard to add on to anything if you want to. Here's some tips to things you can add:
The best way to contribute is to fork the repo, then make a new branch and submit a pull request.
$ cd work-directory
$ git clone https://github.com/your-awesome-username/proj_code.git
$ git branch my_version
$ git push origin my_version
$ git checkout my_version
Then you can start working locally, commit and push as you normally would. When you are happy with your contribution, you can submit a pull request
I will then personally review the request and add it (and your name) to the project
Use or modify this in any way you want wherever you want for whatever purpose you want.