Where are icons stored in LibreOffice 5.3?

I have installed LibreOffice 5.3 and LibreOffice styles, however, Tools->Options->View->Icon style does not show the icon packs installed.

I would like to install the elementary icon theme.

/usr/share/libreoffice/share/config/ does have the icon zips installed, but it is not shown in the settings menu.

Has the location of the icon packs changed in LibreOffice 5.3?

Ah, its in /opt/libreoffice5.3/share/config/