public ObjectProperty<Color> foregroundColorProperty() {
        if (null == foregroundColor) {
            foregroundColor = new ObjectPropertyBase<>(_foregroundColor) {
                @Override protected void invalidated() { fireTileEvent(REDRAW_EVENT); }
                @Override public Object getBean() { return Tile.this; }
                @Override public String getName() { return "foregroundColor"; }
            };
            _foregroundColor = null;
        }
        return foregroundColor;
    }
Defines the Paint object that will be used to fill the tile foreground.

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