This extension displays your daily Github contributions.
Track your GitHub contributions in your browser! Set personal goals for your daily or weekly contributions and get coding. This extension adds a circle to chrome that will show the number of your contributions and change color to a darker green as you reach a high level for that day. So if your circle is dark green then you've had high level of contributions for the day. If you click on the circle a popup will expand and show your contributions for the week and the year with the normal GitHub contribution chart.