Developing a jQuery plugin example

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(function ( $ ) {

 $.fn.greenify = function( options ) {

 // This is the easiest way to have default options.
 var settings = $.extend({
 // These are the defaults.
 color: "#556b2f",
 backgroundColor: "white"
 }, options );

 // Greenify the collection based on the settings variable.
 return this.css({
 color: settings.color,
 backgroundColor: settings.backgroundColor
 });

 };

}( jQuery ));
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