Signal is one of the most popular privacy-focused instant messaging apps in the world, and like most of its peers, it also offers a comprehensive dark mode. The dark mode in Signal changes the stark white background to jet-black and reduces the strain on a user's eyes, especially useful in low-light situations. It is available on both Android and iOS.
Signal Messenger is a private messaging app that comes with end-to-end encryption powered by the open-source Signal protocol. The app is offered by Signal Foundation, which is an independent 501c3 nonprofit organization. In terms of functionality, Signal also offers HD voice and video calls, making it a full-function, modern, messaging app.
To enable dark mode on Signal Private Messenger, launch the app and tap on the profile icon at the top-left corner of the screen. Now go to Appearance, select Theme, and then choose Dark in the pop-up window. The selection will be auto-saved and the background will change from white to black immediately. Do note that iPhone users will be able to skip a step and select Dark directly from the Appearance menu. They won't have to select the Theme option, unlike Android users. To re-enable light mode on either platform, simply retrace the steps and select Light.
Dark Mode On Signal Messenger Desktop App
Signal Messenger also offers a desktop app for Windows, Mac, and Linux (Debian-based distros). Like the mobile app, the desktop app also comes with a dark mode on all three platforms. To enable it, first launch the app and then tap on the profile icon at the top-left corner. Then, click on the Preferences option and select Dark from the Theme menu. The selection will be auto-saved, and the app UI will immediately change from black on white to white on black. This will reduce glare from the screen and make it easier to use the app, especially in a dark room.
Dark mode has become increasingly popular over the past few years, both on mobile and desktop. These days, the feature is offered not only by most apps but also all major operating systems. System-wide dark mode has become a must-have feature in all popular operating systems, including Android, iOS, Windows, macOS, and popular Linux distros like Ubuntu. As for Signal Messenger, it offers the feature natively, enabling users to switch it on with or without OS-level support. This means Signal enables the feature on older versions of Android, iOS, and Windows that do not offer a native dark mode.
Source: Signal