if it's not full-screened, go to "option" and hit ""fit to screen"
(点击 Option > fit to screen)
https://www.figma.com/proto/g6ighLgm4PyT7oI9y20ejr/Untitled?page-id=0%3A1&type=design&node-id=10-1420&viewport=891%2C-539%2C0.08&t=DqfjJ0HGJpLYhlBQ-1&scaling=scale-down&starting-point-node-id=10%3A1420&mode=design
