This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/xorg:21
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/xorg:21.1
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/xorg:21.1-4.12
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/xorg:latest
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/xorg:notaskbar

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.