public final ObjectProperty<Paint> markerFill4Property() {
        if (null == markerFill4) {
            markerFill4 = new StyleableObjectProperty<Paint>(DEFAULT_MARKER_FILL_4) {
                @Override public CssMetaData getCssMetaData() { return StyleableProperties.MARKER_FILL_4; }
                @Override public Object getBean() { return RadialBargraph.this; }
                @Override public String getName() { return "markerFill4"; }
            };
        }
        return markerFill4;
    }