Just click on an action on your dashboard to go to the action detail page where the HabitScore™ chart is now the default tab.
In the future, we'll also chart your Overall HabitScore™ as well as offer a HabitScore™ (and corresponding chart) for each tag you use (so you'll be able to chart progress in particular categories like fitness or work that you've set tags up for).
As noted in the original blog post explaining HabitScore™, our use of the trademark symbol is a little tongue-in-cheek, although we do consider it part of the Habitualist secret sauce!