I sketched out what a performant pixel-based CRDT might look like in my big CRDT article: http://archagon.net/blog/2018/03/24/data-laced-with-history/#ordt-desi

I sketched out what a performant pixel-based CRDT might look like in my big CRDT article: http://archagon.net/blog/2018/03/24/data-laced-with-history/#ordt-design--implementation http://archagon.net/blog/2018/03/24/data-laced-with-history/... Never tried building it, though. And I’m not sure it would actually be practical, but it would at least preserve the full history of the document.