Previously, maps only had two layers.
Opaque tiles were placed on the first layer, while transparent tiles were placed on the second layer.
In EX, a third layer has been added.
This allows for more sophisticated map visuals.
In the map editor, you can easily toggle the visibility of each layer using checkboxes.
New versions of root.getCurrentSession().getTerrainFromPos and root.getCurrentSession().setMapChipGraphicsHandle will be added to the scripts.
These methods include a layerIndex argument, allowing access to specific layers.
