/usr/share/help/cs/mate-user-share/figures/file-sharing-preferences.png is in mate-user-share-common 1.20.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/help/cs/mate-user-share/figures/../../../C/mate-user-share/figures/file-sharing-preferences.png