Scientists discovered a rare orange-pigment-producing fungus called Gonatophragmium triuniae that has useful medicinal and practical applications. The fungus produces a natural pigment that can kill bacteria, protect against oxidative damage, and effectively dye cotton fabrics without toxic chemicals. The main active compound was identified as a phenoxazine derivative, suggesting potential uses in textiles, pharmaceuticals, and natural cosmetics as a safe alternative to synthetic pigments and antibiotics.