public BooleanProperty activeProperty() {
        if (null == active) {
            active = new BooleanPropertyBase(_active) {
                @Override protected void invalidated() { fireTileEvent(REDRAW_EVENT); }
                @Override public Object getBean() { return Tile.this; }
                @Override public String getName() { return "active"; }
            };
        }
        return active;
    }
Defines if the switch in the SwitchTileSkin is active
@param SELECTED
src/main/java/eu/hansolo/tilesfx/Tile.java