Does it FINALLY have a night mode? Black Background with White Text?
The front light of the [Paperwhite] would probably help, but at the same time, for most readers, the need for white-on-black doesn't exist on e-ink screens the way it does on LED screens with their directly-in-your-eye lighting. With e-ink the effect is that of reading print on paper, where white-on-black printing rarely enhances anything.
no matter what Amazon representatives say, inverting the display works perfect.
I can see it on my jailbroken kindle when I run CoolReader, which is capable to do this. But, unfortunately I did not find a way to enable this in the standard-reader so far.