HostileMobSpawning

To work this pack do need Optifine

This Resource Pack will change Minecraft's lighting to show where monsters can and can't spawn. Don't forget to enable "Custom Color" in Video Settings > Quality > Custom Colors: ON (You may need to restart the game.)

In 1.18+ mobs only spawn at a light level of 0

RED	BLUE
All monsters can spawn here	All mobs that rely on light levels cannot spawn here

RED = Dangerous: All monsters can spawn here.
BLUE = Very Safe: All mobs that rely on light levels cannot spawn here.

With Optifine change the option "smooth lightning" to off for more precision