Japanese “No Vacancy” Button
This is a Japanese symbol, and a Japanese character is surrounded by an outer frame. This character looks a bit like the Chinese character "满". This expression means "full seat, full seat, no empty seat, full load, full load", which is often used to remind the car that the gasoline is full, or to remind the prepaid phone card that the phone bill has been paid in full.
In emoji of most platforms, the border of logo is square. Except for the squares depicted by OpenMoji and Microsoft platforms, which have four right-angle black sides, the squares displayed by other platforms have certain radians and look smooth. The appearance of text also varies from platform to platform. In terms of color, most platforms use white, and some platforms use black or red; In terms of fonts, fonts on most platforms are more formal, while fonts on Messenger platform are more personalized with different strokes.
