Now you can manage your worlds restriction. You can specify will it be a blacklist or a whitelist.
Code (Text):
# specify worlds where screamers will be active. you can choose one of these modes: BLACKLIST or WHITELIST
# if it is the BLACKLIST mode, the worlds which added to the list will be unavailable for screamers
# if it is the WHITELIST mode, the only worlds which added to the list will be available for screamers
# Example:
# restrict-worlds:
# mode: WHITELIST
# list:
# - world
# - world_nether
restrict-worlds:
mode: BLACKLIST
list: []