What is the theme in The Death of Superman by Dan Jurgens?

Good Versus Evil in the story is a very central theme. When Doomsday erupts into the world he comes out of an underground lair of some type. Even his entrance into the world seems to foreshadow evil coming. Doomsday will kill a small yellow bird and a deer by crushing them in his hands. Each time that he takes a life he laughs about it and seems to delight greatly in their deaths. Superman and the members of the Justice League will be the forces of good in the story. These characters will continue to sacrifice themselves in order to try to protect people and try to stop Doomsday.