See the image below
Thanks for reporting @Firoj_Multane, I will forward this to the team.
hello, is there already a solution? I have the same problem.
how can I adjust it so that Google has nothing to complain about anymore.
thanks
In designer property set status bar and navigation bar color to none and hide status bar and navigation bar, and import this extension, Try it if it can remove the warning.
EdgeToEdgeSupport.aix (5.1 KB)
If it won’t work with builder.niotron.com then try in beta.niotron.com If it won’t work then only the Niotron Staff can solve this problem.
so I’ve tried everything now.
I’ve removed the navigation bar and status bar.
Set color to none.
Integrated EdgeToEdge aix in my app.
Uploaded updates to Google 3 times with different situations.
I still have the same message from Google.
Your app uses APIs or parameters for the borderless display that are no longer supported.
At least one of the APIs or parameters you use for which you specified the use of borderless and windowed display has been discontinued in Android 15. Your app uses the following deprecated APIs or parameters:
android.view.Window.setNavigationBarColor
android.view.Window.setStatusBarColor
androidx.core.view.WindowCompat.setDecorFitsSystemWindows
They start in the following places:
com.google.appinventor.components.runtime.Form.NavigationBarColor
com.google.android.material.bottomsheet.BottomSheetDialog.onCreate
com.google.android.material.internal.EdgeToEdgeUtils.applyEdgeToEdge
To prepare for Android 15, migrate away from these APIs or parameters.
User Experience
Release Name: 5 (1.5)
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Remove resizing and orientation restrictions in your app to support devices with large screens
Starting with Android 16, Android will ignore resizing and orientation restrictions on devices with large screens, such as foldables and tablets. This can cause layout and usability issues for your users.
We detected the following resizing and orientation restrictions in your app:
com.google.appinventor.components.runtime.ListPickerActivity.onCreate
Remove these restrictions to improve your app’s usability.
please help thanks
Have you added Edge to Edge extension in all screens within the app?
Thanks for the information. Actually Google’s System scans the app built using Niotron or any other AI2 based builders and the system detects the deprecated parameters and API which is set by the builders for every app by default. Until the builder developers change the framework this issue will remain unsolved. We should expect the Niotron team will fix it soon. Have a nice day.
ok thank you for your help 
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Is this issue solve ??
No not solved