Customize Native iOS splash screen

Please add native iOS splash screen customization for published apps.

Right now the launch screen uses a default builder-controlled background that does not match the app’s branding, which creates a disconnected first impression before the app loads.

At minimum, developers should be able to control:
• background color
• logo placement
• logo size
• optional centered branding asset

For apps intended for App Store release, this is a critical part of visual polish and product identity.

For consumer-facing apps, splash screen inconsistency makes the product feel unfinished even when the in-app experience is polished.