Text mod is a very useful tool that changes the texture of graphical elements of GW.
There are a number of uses for it but one of the most popular is Cartography.
It changes the clouded area of the map to a coloured zone making it more obvious which places you need to visit
. You will have to run it with other files such as elona_cartography_made_easy etc... which can also be found on the web. When I get time I will post some addresses but if you search the wiki you will find help...