I don't know what video that you have watched made by Dash...because he has made many youtube video with different interfaces on his phone...some have been just today screen utilities and other have actually been cooked roms that either he has made or other have made for him....below area few links that should explain more in depth what I have just stated and further allow you to achieve such magic on your phone,lol...
How to Flash a rom:
https://www.smartphonejunkie.org/sho...=FLASHING+ROMS
or my thread on how to flash rom onto a titan:
https://www.smartphonejunkie.org/sho...d.php?t=163799