The white glare of the many screens in our lives can easily lead to tired, dry eyes by the end of the day. But there is an easy way to give your eyes a break in the evening - and save power to boot.
At night, a dark background with a light font is easier to read on a computer display than a light background with a dark font. For this reason, some websites offer their registered users a night mode option.
For example, Twitter offers an option that turns its normally white background to a shade of dark blue. This was initially only available on the Twitter app for Android and iOS, but now it's available on desktops too. To enable it on a desktop, users need to click on their profile icon and select Night Mode.
More sophisticated night modes are offered by operating systems. Windows, Mac OS, Android and iOS all offer an automatic mode which will change the so-called colour temperature of the display to warmer tones as night falls.
This is not only easier on the eyes but is also supposed to lead to better sleep. And a darker screen background uses less power, so it's a win-win. — dpa