This is how people draw pictures. If you want to change it, you can download the quick drawing software apk and change the suffix from. Apk is here. Zip: At this point, the Android program becomes a zip compressed package. We select "Extract to …" and open the unzipped folder, which generally contains three folders: lib, META-INF and res, classes.dex, resources.arsc and Android Manifest.

To modify the program icon, we only need to enter the res file, and then you will see that the source icon file of the program is in three folders: drawable-mdpi, drawable-xhdpi, drawable-xxhdpi, and the icon size will increase in turn:

Rename the icon files you want to make them consistent with the icon files in the package, usually icon.png, and then replace the icons in these folders. Because the program design is slightly different, to be on the safe side, we will also replace the icons in the drawable-hdpi folder, and always * * * replace the source program icons in the four folders:

Then go back to the directory at the beginning of the folder, select all the original three folders and three files (select all), right-click "Add to zip compressed file", and then change its suffix back. Apk, and then right-click the decompilation and recompilation tool of APK+Dex file to select the signature and use it. If your computer can display the Android icon, you can see that the icon has suddenly changed, otherwise you can see it on your mobile phone.