[democrite]

Some of the menus I believe are better as dropdowns which you could dismiss by tapping elsewhere; good for settings like the font menu with all the options like themes and the other tabs. The dropdown that's similar in many iOS apps like iBooks remains quicker to use. In those cases, themes are a row of colored circles or icons. Maybe something similar would work, with a long hold to edit, and a scrollable row with last icon being to add more themes or some edit screen or I'm not sure what. That'd be a simple visual representation of themes with more features thru long hold, etc. and would keep the UI quick to access and simple. Other things could be rearranged though I'm still thinking about it.

Other menus like the top right in library view duplicate the sidebar. Perhaps that was because of iPhone. I think there someway to reorganize everything but still considering. Since the iPhone does't have a side bar, perhaps the left menu since users might think on the left side, and the right for a dropdown for settings, selection and download, what seem to be the less used features.

For library or a welcome screen, dunno. I never used the welcome in M2 but might if it comes back. It was just hard to get to the library. Perhaps if M3 just returned to previous view, like library or open book, instead of always one or the other via preference. Then the preference may not be needed.

For showing book details, that is interesting. The iTunes cover view with track list comes to mind, like sort of a pop up but different, something that appears in context similar to the older iOS folders.