A French teenage girl. After Wang Fu relinquishes his duty as guardian and lost his memory in the process, Marinette becomes the new guardian of the Miraculouses. She is currently storing the Horse Miraculous in the Miracle Box.
Their form of sunglasses may be a reference to the fact that some of the earliest recorded instances of sunglasses originate from China, where the lenses were made from polished smoky quartz.
Incidentally, China is the world's largest producer of sunglasses in present day.
The glasses form of the Miraculous could even be a possible reference pun to Dr. Dolittle, since the titled character in the 1967 film gives an old short sighted, working horse a pair of glasses to help him see better.
Similarly to how the Rabbit Miraculous' pocket watch form and blue-white color scheme references the White Rabbit from Alice in Wonderland and Disney's animated film version of the story.