public void setCurrentLocation(final Location LOCATION) {
        if (null == currentLocation) {
            _currentLocation = LOCATION;
            fireTileEvent(LOCATION_EVENT);
        } else {
            if (!currentLocation.isBound()) {
                currentLocation.set(LOCATION);
            }
        }
    }
Defines an optional node that can be used in combination with the
CustomTileSkin.
@param GRAPHIC
src/main/java/eu/hansolo/tilesfx/Tile.java