How to set the background black of Apple mobile phone chat?

How did Apple's mobile phone become a black background?

1, open the Apple mobile phone, enter the main interface of the mobile phone, look for the "Settings" option and click Open;

2. Open the setting interface of the mobile phone, find the "Accessibility" option, and click Enter;

3. Find the "Display and Text Size" option of the mobile phone in the accessibility interface, and click Enter;

4. Slide down to find the "Smart Flip" and "Classic Flip" options, and turn on the switches on the right side of these two options;

This will make the background of Apple's mobile phone black.

Setting the background of Apple's mobile phone to a black background can not only save electricity, but also have the special function of "eye protection". Many people don't have to worry about the glare of the mobile phone when playing with a black background at night, so it can play a certain role in eye protection. However, it should be noted that any preventive measures with eye protection can not stand playing mobile phones for a long time. If you play mobile phone for too long, it will cause visual fatigue, which will hurt your vision. Therefore, even if the background of the mobile phone is black, the eye protection function of the black background is very limited when playing the mobile phone for a long time. The most important eye protection measure is to play mobile phones less.