Creating Canvas Panels
I open the Menu
Change the name of the canvas panel to My Menu Container.
I rename the buttons to Level1 and Level2
Name a Canvas Panel to [Level Select] and parent it to Level1 and Level2. Parent [My Menu Container] to [Level Select]
I change the size of the menu to the aspect ratio that a game would use.
I make a new Canvas Panel called Splash Screen and then make the Level Select invisible as I only want to see the splash screen.
This is the code to change the visible screen from the Splash Screen to the Menu Screen when the button on the Splash Screen is clicked by the player.