I updated my terminal colour setter to be easier to use, and work with more kinds of terminal emulator. It changes the background colour to be unique per host (by hashing the hostname), making it easy to tell one terminal from another. It sets the foreground colours to contrast with the background. Run it from your .profile, or wrap it around, e.g., podman/docker exec.
Website: https://www.mavit.org.uk/termcolours/
RPM packages: https://copr.fedorainfracloud.org/coprs/mavit/termcolours/
Demo: curl https://bitbucket.org/mavit/termcolours/raw/release/script/termcolours | perl