Horrible view of the Android application icons

[SmithJohnFirst]

Godot version:
3.1

OS/device including version:
Android 9

Issue description:
All my Android apps have changed the icon. Applications developed using Godot. The icons are terrible - a white frame has appeared around the icon.

Previously, on older versions of Android, they looked great.
I did not change the icon images.

[KoBeWi]

I don't think it's Godot's problem. The white frames appeared after Android update, so you probably need to update your icons to meet some new guidelines.

[timothyqiu]

FYI: This is the result of Adaptive Icon introduced since Android O (API level > 26).

To adapt to the frame, the application's android:icon attribute in AndroidManifest.xml has to point to an Adaptive Icon drawable XML.

It seems that there is no mention of adaptive icon in the codebase.

[SmithJohnFirst]

My applications do not use adaptive icons.
I decided to add them, but did not find the corresponding menu item in the project export.

I looked at the contents of the export templates and did not find adaptive icons.

Also, I did not find mention of adaptive icons in the documentation. As I understand it, Godot does not support this feature.

[Zireael07]

Uh, I believe we already have an issue open for adaptive icon support? Might have been moved to godot-proposals repo, though?

[KoBeWi]

Ah, indeed :/ Closing as duplicate of #18256