My suggestion: make the Emperor’s shuttle unique, paint it red, or black, with the Imperial logo on the side or something.
What the f*ck? Why?
Because the grey stripe it has doesn’t differentiate it enough from the 3 other identical shuttles also in the film? It’s not a bad suggestion.
That is so illogical. So what you suggest, is that the Emperor - leader of the Empire; the biggest threat for the Rebel Alliance and all other of millions who hate and plot behind his fierce back, travel around in a ship that signifies “I am no ordinary passenger”? That’s like Luke traveling in a completely blue X-Wing, written Skywalker on the sides, and expecting not to be followed or shot down or captured.
JEDIT: I see your lust for spicing up the designs, but doing it on the Emperor’s Shuttle just diminishes his logic and therefore his character. Vader, for instance, didn’t follow Luke in a red Tie-Fighter at the end of ANH and blended in with the others, keeping himself at an advantage for doing so rather than an increased target.