/usr/share/icons/mate/scalable/emotes/ is in mate-icon-theme 1.20.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icons/mate/scalable/emotes/emote-love-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-angel-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-angry-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-confused-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-cool-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-crying-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-devilish-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-embarrassed-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-glasses-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-kiss-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-laugh-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-monkey-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-plain-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-raspberry-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-sad-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-shutmouth-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-sick-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-smile-big-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-smile-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-smirk-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-surprise-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-surprised-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-tired-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-uncertain-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-wink-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-worried-symbolic.svg
/usr/share/icons/mate/scalable/emotes/face-yawn-symbolic.svg