Dark forest update

The dark forest is a biome with great potential: in fact, the huge trees that cover the light give it a good aura of mystery. In my opinion it would be a nice idea to update it. First of all, I propose to raise the trees a bit, to reduce the spawn of hostile mobs in a bit, and to make everything slightly darker. Now my ideas are to add the fireflies, which spawn in small, dark clearings and fly in groups (maybe a group corresponds to an entity), the goblins / fairies (Yes, it seems stupid and childish, but in my opinion there would be ... maybe the kind ones give you speed or other good effects and the mischievous ones give you blindness, levitation and the like), owls (look at my idea of ​​the bird update) and a dungeon like a giant spider's lair, style Harry Potter.