/etc/apparmor.d/abstractions/ubuntu-gnome-terminal is in apparmor 2.12-4ubuntu5.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | # vim:syntax=apparmor
#
# for allowing access to gnome-terminal
#
#include <abstractions/gnome>
# do not use ux or PUx here. Use at a minimum ix
/usr/bin/gnome-terminal ix,
|