Can Apple SMS set the background?

Mobile phone jailbreak comes first.

Then download and install winterboard and Chinese package in cydia.

Install ifunbox on the computer side.

Connect your mobile phone to your computer, open ifunbox, and then create a new folder in the directory of your mobile phone/library /Themes, which you can name at will. Name the required background picture (size 960X960, file format png) as SMSBackground@2x.png and upload it to this folder.

Finally, check the folder in the mobile phone WB.

Background picture: a scene that sets off the main things in pictures and photography. A set in a stage or movie. A historical situation or realistic environment that affects people and events.

Ke Yan's Pursuit of Beauty: "The picture shows a girl who is meditating, and the extremely bright background sets off an image of bowing her head and meditating." Preface to Selected Novels of Duanmu Hongliang: "I can't remember where this photo was taken and what the background was at that time, so I can't answer it."