This file is indexed.

/usr/share/icons/ is in ubuntu-mate-icon-themes 16.04.6.

This file is owned by root:root, with mode 0o755.

File Mime Type Owner Mode Size
..
/usr/share/icons/Radiant-MATE/ root:root 0o755
/usr/share/icons/Ambiant-MATE/ root:root 0o755