Design a split background for the duel between PlaygroundAI and Blue Willow. On the left, PlaygroundAI is represented by a futuristic landscape with technological elements, such as a shiny robot in metallic tones and interlocking digital circuits, against an electric blue background. On the right, Blue Willow is symbolized by a mystical forest, bathed in silvery light, with glittering leafy trees and a towering crown of wood in the sky. In the center, a powerful lightning bolt divides the two sides, signifying the imminent confrontation. The text 'PlaygroundAI or Blue Willow? You decide!' appears at the top of the screen, capturing the essence of this duel between technology and magic.