It works for most icons except the open folder icon. That icon is wider than normal icons.

![screen shot 2013-11-24 at 12 28 49 am](https://f.cloud.github.com/assets/193112/1606822/698a8352-545c-11e3-8adc-5ef870ec9030.png)

This is a Glyphicons / Bootstrap bug. We can adjust the width for this specific icon if you want to. I do prefer stick with the Bootstrap's rule though.

![screen shot 2013-11-24 at 12 31 27 am](https://f.cloud.github.com/assets/193112/1606826/c5445a4c-545c-11e3-8535-e73f7545c779.png)