Lit RotJ Storybook Blue Lightsaber Variant!

As we know, in RotJ it was planned for Luke's new lightsaber to have once again been blue, but it was changed in post production to green because the blue didn't show up well against the bright blue desert sky. Growing up, my school library had a copy of the RotJ Storybook, and I swore to this day that Luke's lightsaber was blue (which confused 7yo me because the lightsaber in the movie was green). I've been searching for the version with the blue lightsaber for YEARS and I've finally found proof that I'm not crazy. I think it's possible that the publisher, RandomHouse, was sent the blue lightsaber imagery prior to Lucas making the change seeing as Lucas had already put out a trailer using the old "Revenge of the Jedi" title which included the blue lightsaber effect.