The cinnamon siamese cat is new to the Siamese breed standard and known by very few people outside the community of breeders.
Many people worldwide likely have this rare Siamese cat but would never be able to identify it since they don’t know this variety exists.
Therefore, you would not find much if you tried to get information about this cat online.
All You Need to Know About Cinnamon Siamese Cats
However, learning about the genetics of cats to be more accurate about the desired fur colors is still a new and complicated strategy. As experiments continue, results should improve as new findings are uncovered.