Hey guys,

I've got some experience with campaign map modding but this is my first real attempt at creating an entirely new map for a campaign. I decided to create the map_regions first, which is sized at 239x254 px. I need to create the rest of the map files in order to start testing the map, but when I started to scale up the map in order to create, for example, map_heights, I found that the colors distort on the edge of land/sea.

I was thinking about just taking the middle ground and guessing where the coastline should be if the map is now 2x+1 by 2x+1, but I figured I'd ask here first to see if anyone has a better answer.

Any help is much appreciated. :)