Indigo is an acoustic room structure, that maps Taiwan's cultural treasures. The design is a homage to cultural heritage that has become apparent in everyday objects. Typical local patterns, traditions and customs are translated into sound-absorbing panels made of 100 percent organic banana and mulberry fibers. The indigo plant gives the panels their blue color. Bamboo forms the simple framing that turns the structure into a featherweight. Indigo's approach was to deep dive into the rich culture of Taiwan artisan handiwork. While exploring this fascinating culture, we found that the old way of indigo dyeing is in fact one of the most sustainable ways to color materials existing.