/usr/ is in mate-dock-applet 0.85-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/lib/
/usr/lib/mate-applets/
/usr/lib/mate-applets/mate-dock-applet/
/usr/lib/mate-applets/mate-dock-applet/app_match.xml
/usr/lib/mate-applets/mate-dock-applet/dock.py
/usr/lib/mate-applets/mate-dock-applet/dock_about.py
/usr/lib/mate-applets/mate-dock-applet/dock_action_list.py
/usr/lib/mate-applets/mate-dock-applet/dock_applet.py
/usr/lib/mate-applets/mate-dock-applet/dock_color_changer.py
/usr/lib/mate-applets/mate-dock-applet/dock_custom_launcher.py
/usr/lib/mate-applets/mate-dock-applet/dock_info.in
/usr/lib/mate-applets/mate-dock-applet/dock_info.py
/usr/lib/mate-applets/mate-dock-applet/dock_popup.py
/usr/lib/mate-applets/mate-dock-applet/dock_prefs.py
/usr/lib/mate-applets/mate-dock-applet/dock_win_list.py
/usr/lib/mate-applets/mate-dock-applet/dock_xml.py
/usr/lib/mate-applets/mate-dock-applet/docked_app.py
/usr/lib/mate-applets/mate-dock-applet/docked_app_helpers.in
/usr/lib/mate-applets/mate-dock-applet/docked_app_helpers.py
/usr/lib/mate-applets/mate-dock-applet/dom_color.py
/usr/lib/mate-applets/mate-dock-applet/log_it.py
/usr/lib/mate-applets/mate-dock-applet/window_control.in
/usr/lib/mate-applets/mate-dock-applet/window_control.py
/usr/share/
/usr/share/dbus-1/
/usr/share/dbus-1/services/
/usr/share/dbus-1/services/org.mate.panel.applet.DockAppletFactory.service
/usr/share/doc/mate-dock-applet/
/usr/share/doc/mate-dock-applet/AUTHORS
/usr/share/doc/mate-dock-applet/NEWS.gz
/usr/share/doc/mate-dock-applet/README
/usr/share/doc/mate-dock-applet/changelog.Debian.gz
/usr/share/doc/mate-dock-applet/copyright
/usr/share/glib-2.0/
/usr/share/glib-2.0/schemas/
/usr/share/glib-2.0/schemas/org.mate.panel.applet.dock.gschema.xml
/usr/share/mate-panel/
/usr/share/mate-panel/applets/
/usr/share/mate-panel/applets/org.mate.panel.DockApplet.mate-panel-applet