How do you reset the "Spirit Theme" back to default settings?

Is there a way to resent the Spirit theme back to default settings? I am still learning CSS and accidentally deleted a page element in the Customize area that I wanted to keep. I had saved it and then realized I couldn't undo what I just deleted. Urg.

I've tried uninstalling and reinstalling (deleting all the associate files as well) and it still comes back up with the way I left it.

Any suggestions?