How to make the app screen background transparent?

[Android Central Question]

I have a galaxy M21. I just updated the software and some UI changes came with it.
Before the update, the app screen background was transparent and show the home screen wallpaper.
Now it's just black. How do I make it transparent again?

 

[mustang7757]

Download in galaxy store a app called Good Lock
You can customize this


I'll leave a Link to register so you can communicate here, As a guest account you can only post questions but can't reply

https://forums.androidcentral.com/showthread.php?t=409154