Frequency of Glow Lichens

Glow Lichens are a great way to light the caves up but they're not enough, not even close. Glow Lichens right now are like spots of light that pop out randomly in caves, I think it looks weird and a bit useless as it is now. What I think how it should be is that Glow Lichens must have a higher frequency of spawning and a behavior of spawning in clusters. Those clusters would look like torn apart chains and resemble spagetti caves. I think that way the caves would look better.