Bright Geometric Pop Art ボーンチャイナマグカップ

Double Rainbow Square Portal – Two vivid concentric rainbow squares shine on a clean white background, stacking red, orange, yellow, green, blue and purple into sharp geometric layers that feel retro, modern and a little hypnotic, creating a bright optical focus that grabs attention, lifts the mood and fills everyday moments with playful color energy and creative joy, like a rainbow portal you never get tired of looking at.