/usr/share/icons/gnome-alternative/32x32/ is in gnome-themes-extras 2.22.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icons/gnome-alternative/32x32/actions/
/usr/share/icons/gnome-alternative/32x32/actions/document-open.png
/usr/share/icons/gnome-alternative/32x32/actions/fileopen.png
/usr/share/icons/gnome-alternative/32x32/actions/folder-new.png
/usr/share/icons/gnome-alternative/32x32/actions/folder_new.png
/usr/share/icons/gnome-alternative/32x32/actions/gtk-open.png
/usr/share/icons/gnome-alternative/32x32/actions/stock_new-dir.png
/usr/share/icons/gnome-alternative/32x32/places/
/usr/share/icons/gnome-alternative/32x32/places/application-x-gnome-saved-search.png
/usr/share/icons/gnome-alternative/32x32/places/folder-remote-ftp.png
/usr/share/icons/gnome-alternative/32x32/places/folder-remote-smb.png
/usr/share/icons/gnome-alternative/32x32/places/folder-remote-ssh.png
/usr/share/icons/gnome-alternative/32x32/places/folder-remote.png
/usr/share/icons/gnome-alternative/32x32/places/folder-saved-search.png
/usr/share/icons/gnome-alternative/32x32/places/folder.png
/usr/share/icons/gnome-alternative/32x32/places/folder_home.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-directory.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-ftp.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-home.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-nfs.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-share.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-smb.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-fs-ssh.png
/usr/share/icons/gnome-alternative/32x32/places/gnome-mime-x-directory-smb-share.png
/usr/share/icons/gnome-alternative/32x32/places/gtk-directory.png
/usr/share/icons/gnome-alternative/32x32/places/inode-directory.png
/usr/share/icons/gnome-alternative/32x32/places/network.png
/usr/share/icons/gnome-alternative/32x32/places/stock_folder.png
/usr/share/icons/gnome-alternative/32x32/places/user-home.png
/usr/share/icons/gnome-alternative/32x32/status/
/usr/share/icons/gnome-alternative/32x32/status/folder-drag-accept.png
/usr/share/icons/gnome-alternative/32x32/status/folder-open.png
/usr/share/icons/gnome-alternative/32x32/status/folder-visiting.png
/usr/share/icons/gnome-alternative/32x32/status/folder_open.png
/usr/share/icons/gnome-alternative/32x32/status/gnome-fs-directory-accept.png
/usr/share/icons/gnome-alternative/32x32/status/gnome-fs-directory-visiting.png
/usr/share/icons/gnome-alternative/32x32/status/gtk-directory.png
/usr/share/icons/gnome-alternative/32x32/status/stock_open.png