/usr/share/icons/Quid/32x32/places/ is in mate-themes 1.9.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icons/Quid/32x32/places/application-x-gnome-saved-search.png
/usr/share/icons/Quid/32x32/places/folder-remote.png
/usr/share/icons/Quid/32x32/places/folder-saved-search.png
/usr/share/icons/Quid/32x32/places/folder.png
/usr/share/icons/Quid/32x32/places/folder_home.png
/usr/share/icons/Quid/32x32/places/gnome-fs-directory.png
/usr/share/icons/Quid/32x32/places/gnome-fs-ftp.png
/usr/share/icons/Quid/32x32/places/gnome-fs-home.png
/usr/share/icons/Quid/32x32/places/gnome-fs-nfs.png
/usr/share/icons/Quid/32x32/places/gnome-fs-share.png
/usr/share/icons/Quid/32x32/places/gnome-fs-smb.png
/usr/share/icons/Quid/32x32/places/gnome-fs-ssh.png
/usr/share/icons/Quid/32x32/places/gnome-mime-x-directory-smb-share.png
/usr/share/icons/Quid/32x32/places/gtk-directory.png
/usr/share/icons/Quid/32x32/places/inode-directory.png
/usr/share/icons/Quid/32x32/places/network.png
/usr/share/icons/Quid/32x32/places/stock_folder.png
/usr/share/icons/Quid/32x32/places/user-home.png