Via Starwars.com:

HOW THE WORK OF MCQUARRIE AND MORE HELPED SHAPE THE WORLD OF STAR WARS REBELS.

Many elements come together to form the spirit of the original Star Wars trilogy. The visuals, the dialogue, the overall tone — they feel like Star Wars and nothing else. With Star Wars Rebels, which is set roughly five years before A New Hope, capturing that spirit was essential. One could argue that the show would feel inauthentic without it. But Star Wars Rebels captures it masterfully, and in numerous ways.

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