The contrast, brightness and gamma settings are great and works really well, I can now read some of my American comics that were more or less unreadable before, so thanks a lot for that!
I have a new question: I used to be able to open the pbimageviewer app from apps, and open a directory full of images and read a comic like that, instead of having it as a cbz/r. But now when I open the app like that, it simply crashes - I have to reset my viewer. Is there another way to open a directory like before or is that functionality gone for good?
Again thanks for the brightness settings, it's awesome!