Which mathematical product packaging innovation was specifically designed using the golden ratio (φ ≈ 1.618) principles to enhance user experience?

Product packaging in the mathematics industry has evolved significantly over the years. From textbooks to mathematical tools and software, the way mathematical products are packaged affects usability, accessibility, and learning outcomes. This trivia question explores how packaging innovations have impacted mathematical education and professional tools through a fascinating historical lens.

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Geometer's Sketchpad software's interactive tutorial packaging (2002)
Fibonacci Compass Set by MathTools Inc. (2014)
Texas Instruments' graphing calculator retail packaging (1995)
Oxford's Advanced Mathematics textbook series container (2008)