public void setRightValue(final double VALUE) {
        if (null == rightValue) {
            _rightValue = VALUE;
            fireTileEvent(REDRAW_EVENT);
        } else {
            if (!rightValue.isBound()) {
                rightValue.set(VALUE);
            }
        }
    }
Returns the lower right region.
Only if the getSkin() != null
@return the lower right region
src/main/java/eu/hansolo/tilesfx/Tile.java