What I've done is change the windowskin depending on certain parameters of the map. So for instance, if the map name includes "Route", a route skin will be displayed. If the map has cave encounters, a cave skin will be displayed. My preferred method is with the inclusion of certain parts of the map name, like "City", "Town", "Forest", "Woods". I know it's not very specific, and has to be organized to work properly, but it is an easy workaround.