To follow Apple’s guidelines for a launch screen image, using the storyboard method (as outlined here https://docs.coronalabs.com/guide/distribution/launchFile/index.html ) I was finding difficult to match the simple gradient that’s in my apps background.
Finally I found an option in XCode to basically resize to fit the images I provided for the storyboard (check attached image)
I hope this helps someone - for me it’s always a nightmare when the time comes to publish something to Apple’s appstore, with all the limitations, guidelines, images, etc, imposed by Apple.