Guys, this is somewhat pointless. The time ES needs to load varies depending on the number of systems and ROMs present in your folders. If you overlay a video with omxplayer, you would have to stop the time ES needs to load completely for your individual installation. And then it’s only valid until you add more ROMS. The video would always play either longer than ES needs to get to the carousel or shorter.
EmulationStation is branded, it will stay like this, but you can always take the source, replace the svg for the logo and compile it. Easiest way.