a type of display (= a way of showing text and images) on a phone, computer screen, etc. that uses a black or dark background with lighter text

One article suggested that dark mode is easier to read and uses less battery. 一篇文章说深色模式更利于阅读也更省电。

In dark mode, the system uses a darker colour palette for all screens, views, menus, and controls. 在深色模式下，系统对所有屏幕、视图、菜单和控件使用较暗的配色方案。