Cassini treats us to a view we would otherwise not get, a crescent Saturn. The view is from the unilluminated side of the rings and was taken in green light.
The angle us just right at 43 degrees below the ringplane so the rings don’t appear to interrupt the crescent. You may notice the “dark” area outside the crescent is faintly illuminated and that is from “ringshine”.
Get a full res version here at JPL’s Cassini site.