Hey guys, I googled and watched a couple of videos and I couldn't find an example of how to create the splash screen programmatically. How can I do so?
Splashs screens are discouraged..have been for a long time. See the HIGs.
Xcode projects automatically include a default launch storyboard for you. Add an image asset accordingly* and be done.
*If you're asking for suggestions on macOS image management, those questions are best put to Apple's public community forums.