Add Bioluminescent Mushrooms

Introduce bioluminescent mushrooms as a natural lighting and navigation element in dark environments. Bioluminescent mushrooms naturally generate in caves, deep underground areas, dense forests, and other low-light biomes. They emit a soft, colored glow that improves visibility without replacing existing light sources such as torches. These mushrooms function as environmental indicators rather than utility blocks. Their presence subtly guides players through dark spaces while reinforcing atmosphere and biome identity. Bioluminescent mushrooms grow in clusters, respond to environmental conditions such as moisture and darkness, and gradually disappear near heavily built or well-lit areas. Design goals: • Improve readability in dark spaces without removing tension • Add natural, atmospheric light sources • Strengthen biome identity through visual language • Avoid replacing player-placed lighting systems Bioluminescent mushrooms make caves and forests feel alive and layered, using light as environmental storytelling rather than direct gameplay advantage.