How about not having a settings page but: - Fit to screen in portrait and to width in landscape automatically. - Lock minimizing when whole page is inside the viewing area (portrait) and when page width equal to screen width in landscape. (no blank area around the page)
btw I think I found a bug. 1. Read a manga chapter 2. Quit Mieru 3. Delete the manga chapter using filebox 4. Now in Mieru open anything, it will only show the first page with chapter size (1/0). to fix: go to history and remove the deleted chapter