I was playing with a fully maximized blastx phantom that when I pulled out, showed a golden box instead of red, blue, or green. Is this a visual glitch or an Easter egg

Did Riot ever said anything about flashes "dark mode"? I mean instead of that white epilepsy inducing flashes i think there should at least have an option for us to make the screen black. Like when Reyna or Omen flash. It's much better than...