I've got the following whishlist for the Debian package of flamerobin (http://bugs.debian.org/575372).
Some fields in db are e.g. flags so it is much easier to
analyse those fields if these are displayed in hex format. it would be
nice if flamerobin have possibility to switch display mode on selected
column to hex.
I'd add that a binary mode would be useful too, along the hexadecimal view.