/usr/share/icons/hicolor/72x72/ is in hicolor-icon-theme 0.17-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icons/hicolor/72x72/actions/
/usr/share/icons/hicolor/72x72/animations/
/usr/share/icons/hicolor/72x72/apps/
/usr/share/icons/hicolor/72x72/categories/
/usr/share/icons/hicolor/72x72/devices/
/usr/share/icons/hicolor/72x72/emblems/
/usr/share/icons/hicolor/72x72/emotes/
/usr/share/icons/hicolor/72x72/filesystems/
/usr/share/icons/hicolor/72x72/intl/
/usr/share/icons/hicolor/72x72/mimetypes/
/usr/share/icons/hicolor/72x72/places/
/usr/share/icons/hicolor/72x72/status/
/usr/share/icons/hicolor/72x72/stock/
/usr/share/icons/hicolor/72x72/stock/chart/
/usr/share/icons/hicolor/72x72/stock/code/
/usr/share/icons/hicolor/72x72/stock/data/
/usr/share/icons/hicolor/72x72/stock/form/
/usr/share/icons/hicolor/72x72/stock/image/
/usr/share/icons/hicolor/72x72/stock/io/
/usr/share/icons/hicolor/72x72/stock/media/
/usr/share/icons/hicolor/72x72/stock/navigation/
/usr/share/icons/hicolor/72x72/stock/net/
/usr/share/icons/hicolor/72x72/stock/object/
/usr/share/icons/hicolor/72x72/stock/table/
/usr/share/icons/hicolor/72x72/stock/text/