jumanji is a highly customizable and functional web browser based on the libwebkit web content engine and the gtk+ toolkit. The idea behind jumanji is a web browser that provides a minimalistic and space saving interface as well as an easy usage that mainly focuses on keyboard interaction like vimperator does.
Note that jumanji is no longer maintained. Use it on your own risk.
If you are interested in the source code you can either browse it online or clone the repository:
$ git clone https://github.com/pwmt/jumanji.git