ID:155514
 
How would I make it wear an area on map is slightly dark (produced by an icon) to cover a region on a map when entered by a player the area will become lighter to wear it doesn't effect how other people not in the area sees it as darkness
u'll need to have either viewer from inside the fog or outside to view client images that represent what they should see.
see_invisible and invisibility.

Make the darkness's invisibility 1, then make the user's see_invisible 1 upon enterring the dark area.