LibreOffice 3.4 Printer Administration still has the OOo "seagull" icon. It is on Linux and presumably on Mac (I cannot try). The following icons should be replaced in libs-core/sysui/desktop/icons:
http://wiki.documentfoundation.org/cgi_img_auth.php/d/d4/LibreOffice_Initial_Icons-pre_final.svg has the LibreOffice-style printer icons.
I fixed it in master and asked for review for 3-4 and 3-3. printer.icns is not used, I did not update it.
RC2 is bit by bit identical with release version, so separate items in the version picker are useless. Changes have been discussed with Michael Meeks.
*** Bug 35687 has been marked as a duplicate of this bug. ***