Signal, an encrypted messaging service, lets you change the font size of the app's display and messages. You can change your font size in Signal on the platform's desktop, Android, and iPhone apps.

Computer displays are growing bigger all the time, and that means they display graphics at much higher resolutions than old CRT monitors did. Although you can view more things on screen in higher ...

You can change the lock screen on your Windows computer by customizing the background image and specifying what supplemental information it displays. To change the lock screen, start the Settings app ...