Brightly colored screens in low-light environments can keep people up at night, contribute to eyestrain, and even burn up battery life on newer devices with OLED displays. In recent years, all major operating systems — macOS, iOS, Windows, and Android — have added a dark-mode option. With this setting, the OS and any application that supports dark mode can switch from a light color scheme to darker tone, which offers UI personalization and reduces eye fatigue.
With all major web browsers now supporting the dark-mode setting, web developers can also serve either a light or dark theme, based on the user’s device setting.
Apple news site 9to5mac, a long-term client, added dark-mode support to its site just before the official release of iOS 13 last Fall — the first version of the iPhone operating system to offer dark mode.