Changing the Minimap Image

I was wondering how you change the minimap image, and replace it with a custom one. Not the in-game minimap, but the image you see on a map when you've selected it to start a game. A lot of maps have custom images, and I realized I don't know how to do it :X.

Anyone know (Surely someone does :))

You need to set the path of the imported image to "war3mapPreview".

The image dimensions should be 128x128

You can have 64x64 if you're really stingy about filesize and would sacrifice lots of details, or you can have 256x256 if you really want to sacrifice filesize for those details.

EDIT!
And the path is as Kinorhynkar suggested, but I think it's war3mapPreview.tga
I'd add the .tga part because it might end the world if you don't, also because I think that's how it's meant to be done.

Thanks!

We have a pending tutorial that explains how to do this very well.