LibreOffice isn’t picking up KDE UI elements or theme on my Plasma 5 Fedora 20 system. I think it is using values from .gtkrc-2.0 .gtkrc-2.0-kde4. Usually after installing libreoffice-kde LibreOffice uses KDE themes and UI elements.
Update:- I am using Version: 4.2.6.3 Build ID: 4.2.6.3-8.fc20