This was a short-lived user interface change to the Suspension Settings on the air suspension equipped Model S/X where the screen showed a submarine type vehicle. This update was rolled out in the initial V9.0 of the software, but when the v9 software received a minor update about a week or two later it was reverted back.
The vehicle is a submarine based on the Lotus Esprit S1 that was featured in the 1977 James Bond film, the Spy Who Loved Me. If I knew it wasn’t going to last, I would have tried to get a better picture.
Here’s a clip from the movie: