(V.7.1.19 Changes) (1.20.1 Minecraft) (Config Datapack Updated)

Dungeons:

Made spawners in all Overworld non-ocean Dungeons now doesn't override the light level requirements of mobs. Thus allowing common monsters in spawners to only spawn in light level 0.

Mineshafts:

Made spawners in all Overworld non-ocean Dungeons now doesn't override the light level requirements of mobs. Thus allowing common monsters in spawners to only spawn in light level 0.

Most Mineshaft's light block rates have been halved, leading to darker Mineshafts.

Tunnel pieces that contains Spawners now will not have light blocks to allow better mob spawning from the spawner.