* @return a <code>Color</code> value
     */
    private Color getStringBorderColor(Color color) {
        /*
         * I think string border colors should be black
         * unless the color of the string is
         * really dark.
         */
        if (color.getRed() * 0.3
                + color.getGreen() * 0.59
                + color.getBlue() * 0.11 < 10) {
            return Color.WHITE;
        } else {
            return Color.BLACK;
        }
    }