I like where it's going, but for Trek "Purists" it's not quite right. The fonts should be in the "Swiss" or at the very least "Helvetica" family. Since developers can embed and use fonts within Widgets, I recommend to the developer finding the "Swiss 911" typeface. That was the official display font used on the show and work well for the Calendar heading. For the sake of usability, Helvetica should be used for the calendar day dates.
Just a thought -- take it or leave it. But please don't misunderstand -- I totally dig this widget.