Help me figure out how to make crystal in Final Sun

[Holland]

So I can't figure out how the right way to add green and blue(mold) crystal in final sun.

 

There is only the cliff and tiles to draw into the map, shown on this picture:

 

But if we look in a standard firestorm map, we can see how the edges are all nicely done the proper way, see pic below

 

 

Does anyone have any idea on how to do this? It seems pretty ridiculous trying to copy it from the map codes, but its now the only solution i can think of.

[Messiah]

 

I remember TS was doing the edges automatically. If not: Copy paste from another map!  :devil: