/usr/share/icons/mate/scalable/apps/ is in mate-icon-theme 1.20.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icons/mate/scalable/apps/accessories-calculator-symbolic.svg
/usr/share/icons/mate/scalable/apps/accessories-character-map-symbolic.svg
/usr/share/icons/mate/scalable/apps/accessories-dictionary-symbolic.svg
/usr/share/icons/mate/scalable/apps/accessories-text-editor-symbolic.svg
/usr/share/icons/mate/scalable/apps/applets-screenshooter-symbolic.svg
/usr/share/icons/mate/scalable/apps/bluetooth-symbolic.svg
/usr/share/icons/mate/scalable/apps/gnome-power-manager-symbolic.svg
/usr/share/icons/mate/scalable/apps/goa-panel-symbolic.svg
/usr/share/icons/mate/scalable/apps/help-browser-symbolic.svg
/usr/share/icons/mate/scalable/apps/help-contents-symbolic.svg
/usr/share/icons/mate/scalable/apps/help-faq-symbolic.svg
/usr/share/icons/mate/scalable/apps/mate.svg
/usr/share/icons/mate/scalable/apps/multimedia-volume-control-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-color-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-accessibility-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-display-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-keyboard-shortcuts-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-locale-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-remote-desktop-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-screensaver-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-desktop-wallpaper-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-bluetooth.svg
/usr/share/icons/mate/scalable/apps/preferences-system-network-proxy-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-network-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-notifications-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-privacy-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-search-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-sharing-symbolic.svg
/usr/share/icons/mate/scalable/apps/preferences-system-time-symbolic.svg
/usr/share/icons/mate/scalable/apps/system-file-manager-symbolic.svg
/usr/share/icons/mate/scalable/apps/system-software-install-symbolic.svg
/usr/share/icons/mate/scalable/apps/system-users-symbolic.svg
/usr/share/icons/mate/scalable/apps/text-editor-symbolic.svg
/usr/share/icons/mate/scalable/apps/user-info-symbolic.svg
/usr/share/icons/mate/scalable/apps/utilities-system-monitor-symbolic.svg
/usr/share/icons/mate/scalable/apps/utilities-terminal-symbolic.svg
/usr/share/icons/mate/scalable/apps/web-browser-symbolic.svg