As far as I can tell it's one of the only (if not the only) fully-featured ebook reader and library manager for linux, and so it's a shame the UI is so clunky. It's not a GNOME application, obviously, so it's hard to expect full integration with the OS, but the interface could still be cleaned up a bunch. Is anyone working on this? If not, is this the sort of thing that'd be difficult for a non-programmer to do?
closed as not constructive by fossfreedom♦ Dec 21 '12 at 17:31
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To see if someone is working on this, you should directly see with upstream developers. https://launchpad.net/calibre
However, I would recommend to be slightly more precise when saying "your software is clunky" :) . Try to be as constructive, do not forget that developers are people too, they take pride in what they do. For example, give use case, how the current interface make the use case harder and how you propose to improve.
I think that installing various QT widget themes would surely help on the graphical aspect side, so maybe you should first look this way ?