Korean biodesigner Joon-Ho Kim collected two Gold Lions at Cannes for "MycoLume," engineering mycelium networks from food compost into glowing storefront signs in Gangnam district. Commissioned by the Seoul Metropolitan Recycling Center, the project processes 8 tons of daily food waste into translucent mycelium panels. Genetically modified photoprotein injections cause store logos to emit cerulean light from dusk until midnight, with luminosity intensifying when rain sensors detect precipitation – mimicking firefly signaling patterns. 

Interactive kiosks allow customers to blend food scraps into "light recipes," while AI-controlled bioreactors optimize metabolic glow cycles (strictly avoiding blockchain verification). Environmental impact: neighborhood light pollution decreased 41% with streetlamp dimming, while municipal composting participation tripled. Tokyo’s Shibuya scramble crossing now prototypes edible mushroom signage replacing plastic billboards.