When viewing single paged comics in full size mode, it would be better, after reaching the bottom of the first page, to have the top portion of the new page viewed, when pushing the page down key.
At the moment, the next page will be shown fully scrolled down to the bottom, so it's required to scroll it up each time using the arrow key. Opus seems to use the last scroll position every time
PgDn ist pushed. The best thing would be, to have a seamless viewing in full size mode, by only having to push the "arrow down" button to reach the bottom, & push it a second time, to continue.