Small Amounts of Glow Lichen in Precasia caves

[TripleThreeT]

This is something I've been thinking about for a while. Currently, the caves have no light source besides potentially lava. Overall, it looks okay, but it bothers me that a cave with so much foliage has no light whatsoever to allow for the plants to grow. Personally, I think adding some Glow Lichen could enhance the atmosphere greatly as shown by the images below. Also, I know I asked this through a stream once, but wanted to ask again anyway.