custom-messages-per-world:
  # Add custom messages for worlds. Use the world name as the key, then
  # use a death reason key with the list of messages.
  # This has lesser priority than custom-messages-per-player,
  # custom-messages-per-killer-player or others.
 
  # "world":
  #   natural:
  #     TNT:
  #       - "A player, %plrtag%, blew up in the specific world!"