It has to do with the TYP inside the img or MapSource file. If you use the original TYP that comes with the map after you send it to your Garmin device you won't be able to see all offroad network. That's the reason we use homemade TYP's depending the device & that's why the colors are not the same. You can use the TYP's & Map files from the newest version [Only registered and activated users can see links. ] where you can choose the TYP you like best & use it in both img & MapSource file of the map.