Scripting Game Startup?

I’m curious how to script what my program does on game startup. As of now it launches an ugly configuration screen. I’d like to control how all that looks and do my own splash screen and whatnot. I’m looking around scripting reference but think I’m not using the right words for the search to find it.

It’s a preference in Player Settings. Edit/Preferences/Player → Display Resolution Dialogue

Taking off the Unity logo’s is a pro feature. Creating you own splash screen is just another scene that loads for a sec before your game. I think that the scene needs to be restarted to adjust he res at runtime, but I may be wrong.