messageOnPortalBroken(default = "With the nether portal broken, the corrupted energy is no longer able to enter the overworld."): The message sent when a portal is broken. prefixPortalCoordsInMessage(default = true): When enabled, shows the portal coordinates in portal messages. portalSpreadRad...
For modded blocks the format is [MODID:Blockname>weight] The effect in action (with old spread settings):
"): The message sent when a portal is broken.prefixPortalCoordsInMessage (default = true): When enabled, shows the portal coordinates in portal messages.portalSpreadRadius (default = 15, min 1, max 100): The radius around the portal to which the nether blocks can spread.spreadDelayTicks (...