How do you change the iOS app icon background color during launch animation?

Question

When launching a flutter built iOS application, I briefly get this black background surrounding the launch screen. How would you change the black background depicted in the image? I tried changing the launch screen background color in Xcode, but I still get this black "border".

Solution

The black "border" in the opening app animation has to do with the way the default flutter icons were generated. I generated my own icons using this generator, and the app animates as intended.

Comments

[SirDarius]

What black border? This image doesn’t appear to be showing a launch screen.

[davebaraka]

@LouFranco I updated the post with more images.

[Vinoth Vino]

Did you check with the release build ?

[davebaraka]

Yes, same problem. I'm porting an application that was natively developed on iOS to flutter, and that application has the same problem. I'm a bit unfamiliar with iOS development, but I will dig around if this is unresolved whenever I get to the publishing stages.

[SirDarius]

Make a very simple launch screen storyboard and see what happens (just all white). Then slowly build it back up to what it was until you find out what caused it.