By default, Faenza uses the OpenOffice icons for LibreOffice. But if you're using LibreOffice, you may want some custom Faenza icons for it - there are no official icons yet but Funnyguy has created some beautiful Faenza Libreoffice icons which you can download via Gnome Look.
To install the icons, download the archive in your home folder, extract it and run the following commands:
cd cd 138257-libreoffice-faenza-icons_V2 sudo ./lo-install
Download LibreOffice Faenza icons.
[image credits: Funnyguy]