Stops mobs from burning in the daylight (This can be disabled in the config) and allows hostile mobs to spawn during the day (This is disabled by default and can be enabled in the config).
I'm playing Minecraft Java in version 1.20.1 with Fabric (0.15.10) and some mods that are listed below, among which the mod More Mobs that allows the zombie horse to be born in the world.
I really like the idea of disabling mob burn at sun and allowing them to spawn during day but I'm afraid to see a creeper spawn in my base... Does your plugin takes into account the artificial light? (from blocks and torches). If not, could you add this option so it can prevents mobs from spawning in your base because of artificial light.