public BooleanProperty sectionIconsVisibleProperty() {
        if (null == sectionIconsVisible) {
            sectionIconsVisible = new BooleanPropertyBase(_sectionIconsVisible) {
                @Override protected void invalidated() { fireTileEvent(REDRAW_EVENT); }
                @Override public Object getBean() { return Tile.this; }
                @Override public String getName() { return "sectionIconsVisible"; }
            };
        }
        return sectionIconsVisible;
    }
Defines if the icon of the sections should be drawn inside
the sections. This is currently only used in the SimpleSkin.

@param VISIBLE
src/main/java/eu/hansolo/tilesfx/Tile.java