Topo2Background is a class that manages which type or background is displayed for the current region. It receives a JSON object from the Topo2CurrentLayout event determines the type of background and then renders.
#Exposed methods ##init()
##addLayout(data: json) This method determines the type of background to to be shown with the given data
##getBackgroundType() Returns the current background type
##resetZoom() Repositions the background pan and zoom to the default values specified in the background json