[This story contains spoilers for Lanterns episode six, “Bad Optics.”] When Lanterns first announced itself as an earthy riff on True Detective, Training Day and Banshee, some fans questioned whether Nathan Fillion’s Green Lantern from Superman (2025) would fit such a markedly different tone. James Gunn, the latter film’s director and co-CEO of DC Studios, has long said that the DCU will not have a house style. Like the comics, each character can reflect the distinct tone of one particular story while adapting to the look and feel of a completely different tale elsewhere in the same universe. Even so, the gap between Fillion’s ring-powered…