/usr/lib/libreoffice/share/config/images_tango.zip is in libreoffice-style-tango 1:5.1.2-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libreoffice/share/config/../../../../share/libreoffice/share/config/images_tango.zip