jquery default style-color

HTML

<div id="plugin">sample</div>

JavaScript

;(function($, window, document, undefined) {
  var pluginName = "color",
    defaults = {
      color: "#556b2f",
      backgroundColor: "white"
    };

  function Plugin(element, options) {
    this.element = element;
    this.welement = $(this.element);
    this.options = $.extend({}, defaults, options);

    this._defaults = defaults;
    this._name = pluginName;

    this.init();
  }

  Plugin.prototype = {
    init: function() {
      this.applyColor();
    },
    applyColor: function() {
      this.welement.css(this.options);
    }
  };

  $.fn[pluginName] = function(options) {
    return this.each(function() {
      if (!$.data(this, "plugin_" + pluginName)) {
        $.data(this, "plugin_" + pluginName,
          new Plugin(this, options));
      }
    });
  };

})(jQuery, window, document);

$(function() {
  $("#plugin").color();
  /*$("#plugin").color({
    color: "green",
    backgroundColor: "red"
  });*/
});