/usr/share/mate-control-center/ui/ is in mate-control-center-common 1.12.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/mate-control-center/ui/appearance.ui
/usr/share/mate-control-center/ui/at-enable-dialog.ui
/usr/share/mate-control-center/ui/display-capplet.ui
/usr/share/mate-control-center/ui/mate-about-me-dialog.ui
/usr/share/mate-control-center/ui/mate-about-me-fingerprint.ui
/usr/share/mate-control-center/ui/mate-about-me-password.ui
/usr/share/mate-control-center/ui/mate-default-applications-properties.ui
/usr/share/mate-control-center/ui/mate-keybinding-properties.ui
/usr/share/mate-control-center/ui/mate-keyboard-properties-a11y-notifications.ui
/usr/share/mate-control-center/ui/mate-keyboard-properties-dialog.ui
/usr/share/mate-control-center/ui/mate-keyboard-properties-layout-chooser.ui
/usr/share/mate-control-center/ui/mate-keyboard-properties-model-chooser.ui
/usr/share/mate-control-center/ui/mate-keyboard-properties-options-dialog.ui
/usr/share/mate-control-center/ui/mate-mouse-properties.ui
/usr/share/mate-control-center/ui/mate-network-properties.ui