That’s a good catch, HappyEndings. The color thing remindse me of the Neverending Story which was original printed with green and red ink representing the two different worlds. The real world is red and the world of human imagination (Fantasia) is green.
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“There were thousands and thousands of forms of joy in the world, but that all were essentially one and the same, namely, the joy of being able to love.”
— from the Neverending Story by Michael Ende