OnePlus How to set dark or light theme for browser app

Just like in the Contacts or Messages app on the OnePlus smartphone, we can set a light or dark design in the browser app, which is much easier on the eyes when navigating the Internet, where all light tones of the layout turn into a dark surface.

Note: In addition to activating the desired design, the system default setting can be set if a schedule of the dark design has already been programmed.