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

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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".

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1 Answers

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.

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