/// <summary>
        ///   <para>Language of button's label.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <param name="culture">Button's text culture.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If either <paramref name="widget"/> or <paramref name="culture"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IPinterestPinItButtonWidget.Language(string)"/>
        public static IPinterestPinItButtonWidget Language(this IPinterestPinItButtonWidget widget, CultureInfo culture)
        {
            Assertion.NotNull(widget);
            Assertion.NotNull(culture);

            return(widget.Language(culture.TwoLetterISOLanguageName));
        }
        /// <summary>
        ///   <para>Sets color of the button to white.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IPinterestPinItButtonWidget.Color(string)"/>
        public static IPinterestPinItButtonWidget White(this IPinterestPinItButtonWidget widget)
        {
            Assertion.NotNull(widget);

            return(widget.Color("white"));
        }
        /// <summary>
        ///   <para>Sets color of the button to red.</para>
        /// </summary>
        /// <param name="widget">Widget to call method on.</param>
        /// <returns>Reference to provided <paramref name="widget"/>.</returns>
        /// <exception cref="ArgumentNullException">If <paramref name="widget"/> is a <c>null</c> reference.</exception>
        /// <seealso cref="IPinterestPinItButtonWidget.Color(string)"/>
        public static IPinterestPinItButtonWidget Red(this IPinterestPinItButtonWidget widget)
        {
            Assertion.NotNull(widget);

            return(widget.Color("red"));
        }