I have now added Boeing 777-200ER seat maps. The job took quite a bit longer than I had originally anticipated ultimately involving collecting almost 100 cabin images, filtering out the obsolete views, counting windows (inside and out), studying YouTube videos, eyeball distances between seats and bulkhead surfaces, recounting windows etc etc.
Tom Beam's fabulous Cabin Tour video was a pure gift from God.
The maps have been developed on a best efforts basis and are not absolutely perfect so if you see anything that does not seem right, please let me know and I will make the necessary corrections.
Oh, I should also mention the background template is not as crisp as I would like. I simply could not find a suitable template available for purchase and ended up splicing two background images - one sourced from Austrian Airlines, the other from Emirates