/etc/X11/cursors/Chameleon-DarkSkyBlue-Large.theme is in chameleon-cursor-theme 0.5-5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/icons/Chameleon-DarkSkyBlue-Large/cursor.theme
/usr/share/icons/Chameleon-DarkSkyBlue-Large/cursor.theme