Like this. How can I change the background of short messages!

Changing the background of SMS requires mobile phone ROOT. Download a RE manager after root. There is an MSN (or MNS). Apk file in system file. Copy and open it in a compressed file format. Find the file of the background picture in it, rename the picture you want to the name of the background picture and replace it. After that, change the file to APK format, use RE Manager to modify the permissions and put them back in the original location, and then restart the phone.