On GitHub, no matter what kind of file is, their icons are all same. However, in your fancy editor, there are some packages which make it energetic.
Therefore, I build a simple extension to replace original file icon with file-specific icons. This improves visual recognition on GitHub.
Gitstalk is a Web app that allows you to sneak peek into the recent activities of other GitHub users. No Login, No BS. Just enter the username and you are good to fly!