Chrome extension for directory tree on Github

[freenerd]

I'm browsing code on Github often and get annoyed by not having access to the repos directory structure all the time. Think TextMate's project drawer or Vim's NerdTree.

I've found this project, which is nice:
https://chrome.google.com/webstore/detail/github-tree/ljoidanknjnfhcefkjbhjpmpccgmnobo

But it doesn't work on private repos. Also having a bigger dir tree that doesn't overlay content would be nice (not sure if possible with Chrome though).

I'm okay with coding. I'm searching for more people who are okay with coding.