@r Fair use is something else entirely that is quite limited and generally only allows for effectively unmodified reproduction and unfortunately fair use doesn't even exist in many countries.

My GNU/Bro says he wants to add it as an option to a free nyancat program, although it first needs to be adjusted so right-facing rainbows works (he wants to remove the libbsd dependency too); https://git.middlendian.com/nyancat.git/