Rocketship icon for Charters in your Pivotal Tracker backlog
When a story contains the label "charter" in your Pivotal Tracker project, a rocketship icon will be displayed next to the story instead of the usual feature/chore/bug icon. This lets you quickly identify your exploratory charters in your backlog or icebox.
For more information on Charters and Exploratory Testing, read "Explore It!" by Elisabeth Hendrickson, or check out this blog post: https://medium.com/@kimbellina/charters-exploratory-testing-and-beyond-87315184f256#.f8o9blwjy