XIB Launch Screen?

Hi,

We experienced blurry launch screens on some iPads. I found somewhere in the internet (do not remember) that I need to specify an XIB instead of the Legacy Launch Images to fix the problem.

We managed to create an XIB File by creating such a file with xcode and dragging all the content from a storyboard into that file.

The problem: The XML content of the file references an image. Now I have no idea where to place the XIB file and the image in the project structure so that Unity / XCode / Cloud Build is able to apply the launch screen correctly.

I found this old thread which doesn't help.
@povilas: can you give some more detailed information?