diff --git a/dist/css/select2.css b/dist/css/select2.css
index cfc4bbea..c98e3b89 100644
--- a/dist/css/select2.css
+++ b/dist/css/select2.css
@@ -45,7 +45,6 @@
     display: block;
     padding: 4px; }
     .select2-container .dropdown .search input {
-      outline: 0;
       padding: 4px;
       width: 100%; }
   .select2-container .dropdown .results {
@@ -124,71 +123,54 @@
   background-color: #5897fb;
   color: white; }
 
-.s2-container {
-  margin: 0;
-  position: relative;
-  zoom: 1;
-  vertical-align: middle; }
-  .s2-container.s2-active {
-    border: 1px solid #5897fb;
-    border-top: bottom; }
-  .s2-container .s2-single-select {
-    display: block;
-    height: 26px;
-    padding: 0 0 0 8px;
-    overflow: hidden;
-    position: relative;
-    border: 1px solid #aaa;
-    white-space: nowrap;
-    line-height: 26px;
+.select2-container.select2-theme-classic .selection .single-select {
+  background-color: #f6f6f6;
+  border: 1px solid #aaa;
+  border-radius: 4px;
+  outline: 0;
+  background-image: -webkit-linear-gradient(top, #ffffff 50%, #eee 100%);
+  background-image: -o-linear-gradient(top, #ffffff 50%, #eee 100%);
+  background-image: linear-gradient(to bottom, #ffffff 50%, #eee 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#eee', GradientType=0); }
+  .select2-container.select2-theme-classic .selection .single-select:focus {
+    border: 1px solid #5897fb; }
+  .select2-container.select2-theme-classic .selection .single-select .rendered-selection {
     color: #444;
-    text-decoration: none;
-    border-radius: 4px;
-    background-clip: padding-box;
-    -webkit-touch-callout: none;
-    -webkit-user-select: none;
-    -moz-user-select: none;
-    -ms-user-select: none;
-    user-select: none;
-    background-color: #fff;
-    background-image: -webkit-gradient(linear, left bottom, left top, color-stop(0, #eee), color-stop(0.5, #fff));
-    background-image: -webkit-linear-gradient(center bottom, #eee 0%, #fff 50%);
-    background-image: -moz-linear-gradient(center bottom, #eee 0%, #fff 50%);
-    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr = '#ffffff', endColorstr = '#eeeeee', GradientType = 0);
-    background-image: linear-gradient(to top, #eee 0%, #fff 50%); }
-    .s2-container .s2-single-select .s2-selection {
-      margin-right: 26px;
-      display: block;
-      overflow: hidden;
-      white-space: nowrap;
-      text-overflow: ellipsis; }
-  .s2-container .s2-open .select2-container-active .select2-choice, .s2-container .s2-open .select2-container-active .select2-choices {
-    border: 1px solid #5897fb;
-    outline: none;
-    -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
-    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3); }
-
-.s2-search input {
-  -webkit-box-sizing: border-box;
-  /* webkit */
-  -moz-box-sizing: border-box;
-  /* firefox */
-  box-sizing: border-box;
-  /* css3 */ }
-
-.s2-dropdown {
-  width: 100%;
-  margin-top: -1px;
-  position: absolute;
-  z-index: 9999;
-  overflow: scroll;
-  background: #fff;
-  color: #000;
+    line-height: 28px; }
+    .select2-container.select2-theme-classic .selection .single-select .rendered-selection .placeholder {
+      color: #999; }
+.select2-container.select2-theme-classic.open .selection .single-select {
   border: 1px solid #5897fb;
-  border-top: none;
-  border-radius: 0 0 4px 4px;
-  -webkit-box-shadow: 0 4px 5px rgba(0, 0, 0, 0.15);
-  box-shadow: 0 4px 5px rgba(0, 0, 0, 0.15); }
-
-.s2-hidden {
-  display: none; }
+  background-image: -webkit-linear-gradient(top, #eee 50%, #ffffff 100%);
+  background-image: -o-linear-gradient(top, #eee 50%, #ffffff 100%);
+  background-image: linear-gradient(to bottom, #eee 50%, #ffffff 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#eee', endColorstr='#ffffff', GradientType=0); }
+.select2-container.select2-theme-classic.open .selection .single-select, .select2-container.select2-theme-classic.open .selection .multiple-select {
+  border-bottom: none;
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0; }
+.select2-container.select2-theme-classic .dropdown {
+  background-color: white;
+  border-top: none; }
+  .select2-container.select2-theme-classic .dropdown .search input {
+    border: 1px solid #aaa;
+    outline: 0; }
+  .select2-container.select2-theme-classic .dropdown .results > .options {
+    max-height: 200px;
+    overflow-y: auto; }
+  .select2-container.select2-theme-classic .dropdown .results .options .option[role=group] {
+    padding: 0; }
+    .select2-container.select2-theme-classic .dropdown .results .options .option[role=group] .group-label {
+      cursor: default;
+      display: block;
+      padding: 6px; }
+  .select2-container.select2-theme-classic .dropdown .results .options .option[aria-disabled=true] {
+    color: grey; }
+  .select2-container.select2-theme-classic .dropdown .results .options .option[aria-selected].highlighted {
+    background-color: #3875d7;
+    color: white; }
+.select2-container.select2-theme-classic.open .dropdown {
+  border: 1px solid #5897fb;
+  border-top: none; }
diff --git a/dist/css/select2.min.css b/dist/css/select2.min.css
index b2f0fe62..e76f36b8 100644
--- a/dist/css/select2.min.css
+++ b/dist/css/select2.min.css
@@ -1 +1 @@
-.select2-container{box-sizing:border-box;display:inline-block;margin:0;position:relative;vertical-align:middle;}.select2-container .selection .single-select{box-sizing:border-box;cursor:pointer;display:block;height:28px;user-select:none;-webkit-user-select:none;}.select2-container .selection .single-select .rendered-selection{display:block;overflow:hidden;padding-left:8px;text-overflow:ellipsis;}.select2-container .selection .multiple-select{box-sizing:border-box;cursor:pointer;display:block;min-height:32px;user-select:none;-webkit-user-select:none;}.select2-container .selection .multiple-select .rendered-selection{display:block;overflow:hidden;padding-left:8px;text-overflow:ellipsis;}.select2-container .dropdown{background-color:white;border:1px solid #aaa;border-radius:4px;box-sizing:border-box;display:block;position:absolute;left:-100000px;width:100%;z-index:100;}.select2-container .dropdown .search{display:block;padding:4px;}.select2-container .dropdown .search input{outline:0;padding:4px;width:100%;}.select2-container .dropdown .results{display:block;}.select2-container .dropdown .results .options{list-style:none;margin:0;padding:0;}.select2-container .dropdown .results .options .option{padding:6px;user-select:none;-webkit-user-select:none;}.select2-container .dropdown .results .options .option[aria-selected]{cursor:pointer;}.select2-container.open .dropdown{border-top:none;border-top-left-radius:0;border-top-right-radius:0;left:0;}.select2-container.select2-theme-default .selection .single-select{background-color:#fff;border:1px solid #aaa;border-radius:4px;}.select2-container.select2-theme-default .selection .single-select .rendered-selection{color:#444;line-height:28px;}.select2-container.select2-theme-default .selection .single-select .rendered-selection .placeholder{color:#999;}.select2-container.select2-theme-default .selection .multiple-select{background-color:white;border:1px solid #aaa;border-radius:4px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection{list-style:none;margin:0;padding:5px;padding-bottom:0;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .placeholder{color:#999;float:left;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice{background-color:#e4e4e4;border:1px solid #aaa;border-radius:4px;float:left;margin-right:5px;margin-bottom:5px;padding:0 5px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice .remove{color:#999;display:inline-block;font-weight:bold;margin-right:2px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice .remove:hover{color:#333;}.select2-container.select2-theme-default.open .selection .single-select,.select2-container.select2-theme-default.open .selection .multiple-select{border-bottom-left-radius:0;border-bottom-right-radius:0;}.select2-container.select2-theme-default .dropdown .search input{border:1px solid #aaa;}.select2-container.select2-theme-default .dropdown .results>.options{max-height:200px;overflow-y:auto;}.select2-container.select2-theme-default .dropdown .results .options .option[role=group]{padding:0;}.select2-container.select2-theme-default .dropdown .results .options .option[role=group] .group-label{cursor:default;display:block;padding:6px;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-disabled=true]{color:#999;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-selected=true]{background-color:#ddd;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-selected].highlighted{background-color:#5897fb;color:white;}.s2-container{margin:0;position:relative;zoom:1;vertical-align:middle;}.s2-container.s2-active{border:1px solid #5897fb;border-top:bottom;}.s2-container .s2-single-select{display:block;height:26px;padding:0 0 0 8px;overflow:hidden;position:relative;border:1px solid #aaa;white-space:nowrap;line-height:26px;color:#444;text-decoration:none;border-radius:4px;background-clip:padding-box;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background-color:#fff;background-image:-webkit-gradient(linear, left bottom, left top, color-stop(0, #eee), color-stop(0.5, #fff));background-image:-webkit-linear-gradient(center bottom, #eee 0%, #fff 50%);background-image:-moz-linear-gradient(center bottom, #eee 0%, #fff 50%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr = '#ffffff', endColorstr = '#eeeeee', GradientType = 0);background-image:linear-gradient(to top, #eee 0%, #fff 50%);}.s2-container .s2-single-select .s2-selection{margin-right:26px;display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}.s2-container .s2-open .select2-container-active .select2-choice,.s2-container .s2-open .select2-container-active .select2-choices{border:1px solid #5897fb;outline:none;-webkit-box-shadow:0 0 5px rgba(0, 0, 0, 0.3);box-shadow:0 0 5px rgba(0, 0, 0, 0.3);}.s2-search input{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;}.s2-dropdown{width:100%;margin-top:-1px;position:absolute;z-index:9999;overflow:scroll;background:#fff;color:#000;border:1px solid #5897fb;border-top:none;border-radius:0 0 4px 4px;-webkit-box-shadow:0 4px 5px rgba(0, 0, 0, 0.15);box-shadow:0 4px 5px rgba(0, 0, 0, 0.15);}.s2-hidden{display:none;}
\ No newline at end of file
+.select2-container{box-sizing:border-box;display:inline-block;margin:0;position:relative;vertical-align:middle;}.select2-container .selection .single-select{box-sizing:border-box;cursor:pointer;display:block;height:28px;user-select:none;-webkit-user-select:none;}.select2-container .selection .single-select .rendered-selection{display:block;overflow:hidden;padding-left:8px;text-overflow:ellipsis;}.select2-container .selection .multiple-select{box-sizing:border-box;cursor:pointer;display:block;min-height:32px;user-select:none;-webkit-user-select:none;}.select2-container .selection .multiple-select .rendered-selection{display:block;overflow:hidden;padding-left:8px;text-overflow:ellipsis;}.select2-container .dropdown{background-color:white;border:1px solid #aaa;border-radius:4px;box-sizing:border-box;display:block;position:absolute;left:-100000px;width:100%;z-index:100;}.select2-container .dropdown .search{display:block;padding:4px;}.select2-container .dropdown .search input{padding:4px;width:100%;}.select2-container .dropdown .results{display:block;}.select2-container .dropdown .results .options{list-style:none;margin:0;padding:0;}.select2-container .dropdown .results .options .option{padding:6px;user-select:none;-webkit-user-select:none;}.select2-container .dropdown .results .options .option[aria-selected]{cursor:pointer;}.select2-container.open .dropdown{border-top:none;border-top-left-radius:0;border-top-right-radius:0;left:0;}.select2-container.select2-theme-default .selection .single-select{background-color:#fff;border:1px solid #aaa;border-radius:4px;}.select2-container.select2-theme-default .selection .single-select .rendered-selection{color:#444;line-height:28px;}.select2-container.select2-theme-default .selection .single-select .rendered-selection .placeholder{color:#999;}.select2-container.select2-theme-default .selection .multiple-select{background-color:white;border:1px solid #aaa;border-radius:4px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection{list-style:none;margin:0;padding:5px;padding-bottom:0;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .placeholder{color:#999;float:left;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice{background-color:#e4e4e4;border:1px solid #aaa;border-radius:4px;float:left;margin-right:5px;margin-bottom:5px;padding:0 5px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice .remove{color:#999;display:inline-block;font-weight:bold;margin-right:2px;}.select2-container.select2-theme-default .selection .multiple-select .rendered-selection .choice .remove:hover{color:#333;}.select2-container.select2-theme-default.open .selection .single-select,.select2-container.select2-theme-default.open .selection .multiple-select{border-bottom-left-radius:0;border-bottom-right-radius:0;}.select2-container.select2-theme-default .dropdown .search input{border:1px solid #aaa;}.select2-container.select2-theme-default .dropdown .results>.options{max-height:200px;overflow-y:auto;}.select2-container.select2-theme-default .dropdown .results .options .option[role=group]{padding:0;}.select2-container.select2-theme-default .dropdown .results .options .option[role=group] .group-label{cursor:default;display:block;padding:6px;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-disabled=true]{color:#999;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-selected=true]{background-color:#ddd;}.select2-container.select2-theme-default .dropdown .results .options .option[aria-selected].highlighted{background-color:#5897fb;color:white;}.select2-container.select2-theme-classic .selection .single-select{background-color:#f6f6f6;border:1px solid #aaa;border-radius:4px;outline:0;background-image:-webkit-linear-gradient(top, #ffffff 50%, #eee 100%);background-image:-o-linear-gradient(top, #ffffff 50%, #eee 100%);background-image:linear-gradient(to bottom, #ffffff 50%, #eee 100%);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#eee', GradientType=0);}.select2-container.select2-theme-classic .selection .single-select:focus{border:1px solid #5897fb;}.select2-container.select2-theme-classic .selection .single-select .rendered-selection{color:#444;line-height:28px;}.select2-container.select2-theme-classic .selection .single-select .rendered-selection .placeholder{color:#999;}.select2-container.select2-theme-classic.open .selection .single-select{border:1px solid #5897fb;background-image:-webkit-linear-gradient(top, #eee 50%, #ffffff 100%);background-image:-o-linear-gradient(top, #eee 50%, #ffffff 100%);background-image:linear-gradient(to bottom, #eee 50%, #ffffff 100%);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#eee', endColorstr='#ffffff', GradientType=0);}.select2-container.select2-theme-classic.open .selection .single-select,.select2-container.select2-theme-classic.open .selection .multiple-select{border-bottom:none;border-bottom-left-radius:0;border-bottom-right-radius:0;}.select2-container.select2-theme-classic .dropdown{background-color:white;border-top:none;}.select2-container.select2-theme-classic .dropdown .search input{border:1px solid #aaa;outline:0;}.select2-container.select2-theme-classic .dropdown .results>.options{max-height:200px;overflow-y:auto;}.select2-container.select2-theme-classic .dropdown .results .options .option[role=group]{padding:0;}.select2-container.select2-theme-classic .dropdown .results .options .option[role=group] .group-label{cursor:default;display:block;padding:6px;}.select2-container.select2-theme-classic .dropdown .results .options .option[aria-disabled=true]{color:grey;}.select2-container.select2-theme-classic .dropdown .results .options .option[aria-selected].highlighted{background-color:#3875d7;color:white;}.select2-container.select2-theme-classic.open .dropdown{border:1px solid #5897fb;border-top:none;}
\ No newline at end of file
diff --git a/dist/js/select2.amd.full.js b/dist/js/select2.amd.full.js
index 647bb6bd..99fd2c0c 100644
--- a/dist/js/select2.amd.full.js
+++ b/dist/js/select2.amd.full.js
@@ -1925,6 +1925,7 @@ define('select2/defaults',[
       language: ['select2/i18n/en'],
       matcher: matcher,
       minimumInputLength: 0,
+      theme: 'default',
       templateResult: function (result) {
         return result.text;
       },
@@ -2308,7 +2309,7 @@ define('select2/core',[
 
   Select2.prototype.render = function () {
     var $container = $(
-      '<span class="select2 select2-container select2-theme-default">' +
+      '<span class="select2 select2-container">' +
         '<span class="selection"></span>' +
         '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
       '</span>'
@@ -2316,6 +2317,8 @@ define('select2/core',[
 
     this.$container = $container;
 
+    this.$container.addClass('select2-theme-' + this.options.get('theme'));
+
     $container.data('element', this.$element);
 
     return $container;
diff --git a/dist/js/select2.amd.js b/dist/js/select2.amd.js
index ab5cefad..019e5c49 100644
--- a/dist/js/select2.amd.js
+++ b/dist/js/select2.amd.js
@@ -1925,6 +1925,7 @@ define('select2/defaults',[
       language: ['select2/i18n/en'],
       matcher: matcher,
       minimumInputLength: 0,
+      theme: 'default',
       templateResult: function (result) {
         return result.text;
       },
@@ -2308,7 +2309,7 @@ define('select2/core',[
 
   Select2.prototype.render = function () {
     var $container = $(
-      '<span class="select2 select2-container select2-theme-default">' +
+      '<span class="select2 select2-container">' +
         '<span class="selection"></span>' +
         '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
       '</span>'
@@ -2316,6 +2317,8 @@ define('select2/core',[
 
     this.$container = $container;
 
+    this.$container.addClass('select2-theme-' + this.options.get('theme'));
+
     $container.data('element', this.$element);
 
     return $container;
diff --git a/dist/js/select2.full.js b/dist/js/select2.full.js
index 7518067a..73960b9f 100644
--- a/dist/js/select2.full.js
+++ b/dist/js/select2.full.js
@@ -11460,6 +11460,7 @@ define('select2/defaults',[
       language: ['select2/i18n/en'],
       matcher: matcher,
       minimumInputLength: 0,
+      theme: 'default',
       templateResult: function (result) {
         return result.text;
       },
@@ -11843,7 +11844,7 @@ define('select2/core',[
 
   Select2.prototype.render = function () {
     var $container = $(
-      '<span class="select2 select2-container select2-theme-default">' +
+      '<span class="select2 select2-container">' +
         '<span class="selection"></span>' +
         '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
       '</span>'
@@ -11851,6 +11852,8 @@ define('select2/core',[
 
     this.$container = $container;
 
+    this.$container.addClass('select2-theme-' + this.options.get('theme'));
+
     $container.data('element', this.$element);
 
     return $container;
diff --git a/dist/js/select2.full.min.js b/dist/js/select2.full.min.js
index 298b4c2a..05716ebe 100644
--- a/dist/js/select2.full.min.js
+++ b/dist/js/select2.full.min.js
@@ -1,4 +1,4 @@
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e=this.selectionContainer();e.html(this.display(this.placeholder)),e.addClass("placeholder").removeClass("choice"),this.$selection.find(".rendered-selection").append(e)},a}),c("select2/translation",[],function(){function a(a){this.dict=a||{}}return a.prototype.all=function(){return this.dict},a.prototype.get=function(a){return this.dict[a]},a.prototype.extend=function(a){this.dict=$.extend({},a.all(),this.dict)},a._cache={},a.loadPath=function(c){if(!(c in a._cache)){var d=b(c);a._cache[c]=d}return new a(a._cache[c])},a}),c("select2/data/base",["../utils"],function(a){function b(){b.__super__.constructor.call(this)}return a.Extend(b,a.Observable),b.prototype.current=function(){throw new Error("The `current` method must be defined in child classes.")},b.prototype.query=function(){throw new Error("The `query` method must be defined in child classes.")},b.prototype.bind=function(){},b.prototype.destroy=function(){},b.prototype.generateResultId=function(b,c){var d=b.id+"-result-";return d+=a.generateChars(4),d+=null!=c.id?"-"+c.id.toString():"-"+a.generateChars(4)},b}),c("select2/data/select",["./base","../utils","jquery"],function(a,b,c){function d(a,b){this.$element=a,this.options=b,d.__super__.constructor.call(this)}return b.Extend(d,a),d.prototype.current=function(a){var b=[],d=this;this.$element.find(":selected").each(function(){var a=c(this),e=d.item(a);b.push(e)}),a(b)},d.prototype.select=function(a){var b=this;if(this.$element.prop("multiple"))this.current(function(c){var d=[];a=[a],a.push.apply(a,c);for(var e=0;e<a.length;e++)id=a[e].id,-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")});else{var c=a.id;this.$element.val(c),this.$element.trigger("change")}},d.prototype.unselect=function(a){var b=this;this.$element.prop("multiple")&&this.current(function(c){for(var d=[],e=0;e<c.length;e++)id=c[e].id,id!==a.id&&-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")})},d.prototype.bind=function(a){var b=this;this.container=a,a.on("select",function(a){b.select(a.data)}),a.on("unselect",function(a){b.unselect(a.data)})},d.prototype.destroy=function(){this.$element.find("*").each(function(){c.removeData(this,"data")})},d.prototype.query=function(a,b){var d=[],e=this,f=this.$element.children();f.each(function(){var b=c(this);if(b.is("option")||b.is("optgroup")){var f=e.item(b),g=e.matches(a,f);null!==g&&d.push(g)}}),b(d)},d.prototype.option=function(a){var b=document.createElement("option");b.value=a.id,a.disabled&&(b.disabled=!0),a.selected&&(b.selected=!0),b.innerText=a.text;var d=c(b),e=this._normalizeItem(a);return c.data(b,"data",e),d},d.prototype.item=function(a){var b={};if(b=c.data(a[0],"data"),null!=b)return b;if(a.is("option"))b={id:a.val(),text:a.html(),disabled:a.prop("disabled"),selected:a.prop("selected")};else if(a.is("optgroup")){b={text:a.attr("label"),children:[]};for(var d=a.children("option"),e=[],f=0;f<d.length;f++){var g=c(d[f]),h=this.item(g);e.push(h)}b.children=e}return b=this._normalizeItem(b),c.data(a[0],"data",b),b},d.prototype._normalizeItem=function(a){null==a.text&&(a={id:a,text:a});var b={selected:!1,disabled:!1};return null!=a.id&&(a.id=a.id.toString()),null!=a.text&&(a.text=a.text.toString()),null==a._resultId&&a.id&&null!=this.container&&(a._resultId=this.generateResultId(this.container,a)),c.extend({},b,a)},d.prototype.matches=function(a,b){var c=this.options.get("matcher");return c(a,b)},d}),c("select2/data/array",["./select","../utils","jquery"],function(a,b,c){function d(a,b){var c=b.get("data");d.__super__.constructor.call(this,a,b),this.convertToOptions(c)}return b.Extend(d,a),d.prototype.select=function(a){var b=this.$element.find('option[value="'+a.id+'"]');0===b.length&&(b=this.option(a),this.$element.append(b)),d.__super__.select.call(this,a)},d.prototype.convertToOptions=function(a){function b(a){return function(){return c(this).val()==a.id}}for(var d=this,e=this.$element.find("option"),f=e.map(function(){return d.item(c(this)).id}).get(),g=0;g<a.length;g++){var h=a[g];if(h.id=h.id.toString(),f.indexOf(h.id)>=0){var i=e.filter(b(h)),j=this.item(i),k=(c.extend(!0,{},j,h),this.option(j));i.replaceWith(k)}else{var l=this.option(h);this.$element.append(l)}}},d}),c("select2/data/ajax",["./array","../utils","jquery"],function(a,b,c){function d(b,c){this.ajaxOptions=c.get("ajax"),null!=this.ajaxOptions.processResults&&(this.processResults=this.ajaxOptions.processResults),a.__super__.constructor.call(this,b,c)}return b.Extend(d,a),d.prototype.processResults=function(a){return a},d.prototype.query=function(a,b){function d(){var a=c.ajax(f);a.success(function(a){var c=e.processResults(a);b(c)})}var e=this,f=c.extend({type:"GET"},this.ajaxOptions);"function"==typeof f.url&&(f.url=f.url(a)),"function"==typeof f.data&&(f.data=f.data(a)),this.ajaxOptions.delay&&""!==a.term?(this._queryTimeout&&window.clearTimeout(this._queryTimeout),this._queryTimeout=window.setTimeout(d,this.ajaxOptions.delay)):d()},d}),c("select2/data/tags",[],function(){function a(a,b,c){var d=c.get("tags");if(a.call(this,b,c),$.isArray(d))for(var e=0;e<d.length;e++){var f=d[e],g=this._normalizeItem(f),h=this.option(g);this.$element.append(h)}}return a.prototype.query=function(a,b,c){function d(a,f){for(var g=0;g<a.length;g++){var h=a[g],i=null!=h.children&&!d(h.children,!0),j=h.text===b.term;if(j||i)return f?!1:void c(a)}if(f)return!0;var k=e.createTag(b),l=e.option(k);l.attr("data-select2-tag",!0),e.$element.append(l),e.insertTag(a,k),c(a)}var e=this;return this._removeOldTags(),null==b.term||""===b.term||null!=b.page?void a.call(this,b,c):void a.call(this,b,d)},a.prototype.createTag=function(a,b){return{id:b.term,text:b.term}},a.prototype.insertTag=function(a,b,c){b.unshift(c)},a.prototype._removeOldTags=function(){var a=(this._lastTag,this.$element.find("option[data-select2-tag]"));a.each(function(){this.selected||$(this).remove()})},a}),c("select2/data/minimumInputLength",[],function(){function a(a,b,c){this.minimumInputLength=c.get("minimumInputLength"),a.call(this,b,c)}return a.prototype.query=function(a,b,c){return b.term=b.term||"",b.term.length<this.minimumInputLength?void this.trigger("results:message",{message:"inputTooShort",args:{minimum:this.minimumInputLength,input:b.term,params:b}}):void a.call(this,b,c)},a}),c("select2/dropdown",["./utils"],function(a){function b(a){this.$element=a}return a.Extend(b,a.Observable),b.prototype.render=function(){var a=$('<span class="dropdown"><span class="results"></span></span>');return this.$dropdown=a,a},b.prototype.destroy=function(){this.$dropdown.remove()},b.prototype.bind=function(){},b}),c("select2/dropdown/search",["../utils"],function(){function a(){}return a.prototype.render=function(a){var b=a.call(this),c=$('<span class="search"><input 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a(a,b,c,d){this.placeholder=this.normalizePlaceholder(c.get("placeholder")),a.call(this,b,c,d)}return a.prototype.append=function(a,b){b=this.removePlaceholder(b),a.call(this,b)},a.prototype.normalizePlaceholder=function(a,b){return"string"==typeof b&&(b={id:"",text:b}),b},a.prototype.removePlaceholder=function(a,b){for(var c=b.slice(0),d=b.length-1;d>=0;d--){var e=b[d];this.placeholder.id===e.id&&c.splice(d,1)}return c},a}),c("select2/dropdown/infiniteScroll",["jquery"],function(a){function b(a,b,c,d){this.lastParams={},a.call(this,b,c,d),this.$loadingMore=this.createLoadingMore(),this.loading=!1}return b.prototype.append=function(a,b){this.$loadingMore.remove(),a.call(this,b),b.length>0&&this.$results.append(this.$loadingMore),this.loading=!1},b.prototype.bind=function(b,c,d){var e=this;b.call(this,c,d),c.on("query",function(a){e.lastParams=a,e.loading=!0}),c.on("query:append",function(a){e.lastParams=a,e.loading=!0}),this.$results.on("scroll",function(){var b=a.contains(document.documentElement,e.$loadingMore[0]);if(!e.loading&&b){var c=e.$results.offset().top+e.$results.outerHeight(!1),d=e.$loadingMore.offset().top+e.$loadingMore.outerHeight(!1);c+50>=d&&e.loadMore()}})},b.prototype.loadMore=function(){this.loading=!0;var b=a.extend({},{page:1},this.lastParams);b.page++,this.trigger("query:append",b)},b.prototype.createLoadingMore=function(){var b=a('<li class="option load-more" role="treeitem"></li>'),c=this.options.get("translations").get("loadingMore");return b.html(c(this.lastParams)),b},b}),c("select2/i18n/en",[],function(){return{inputTooShort:function(a){var b=a.minimum-a.input.length,c="Please enter "+b+" or more character";return 1!=b&&(c+="s"),c},loadingMore:function(){return"Loading more results…"},noResults:function(){return"No results found"}}}),c("select2/defaults",["jquery","./results","./selection/single","./selection/multiple","./selection/placeholder","./utils","./translation","./data/select","./data/array","./data/ajax","./data/tags","./data/minimumInputLength","./dropdown","./dropdown/search","./dropdown/hidePlaceholder","./dropdown/infiniteScroll","./i18n/en"],function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){function q(){this.reset()}q.prototype.apply=function(q){if(q=a.extend({},this.defaults,q),null==q.dataAdapter&&(q.dataAdapter=null!=q.ajax?j:null!=q.data?i:h),q.minimumInputLength>0&&(q.dataAdapter=f.Decorate(q.dataAdapter,l)),null!=q.tags&&(q.dataAdapter=f.Decorate(q.dataAdapter,k)),null==q.resultsAdapter&&(q.resultsAdapter=b,null!=q.ajax&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,p)),null!=q.placeholder&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,o))),null==q.dropdownAdapter){var r=f.Decorate(m,n);q.dropdownAdapter=r}if(null==q.selectionAdapter&&(q.selectionAdapter=q.multiple?d:c,null!=q.placeholder&&(q.selectionAdapter=f.Decorate(q.selectionAdapter,e))),"string"==typeof q.language&&(q.language=[q.language]),a.isArray(q.language)){for(var s=new g,t=q.language.concat(this.defaults.language),u=0;u<t.length;u++){var v=t[u],w={};try{w=g.loadPath(v)}catch(x){v="select2/i18n/"+v,w=g.loadPath(v)}s.extend(w)}q.translations=s}else q.translations=new Translations(q.language);return q},q.prototype.reset=function(){function b(c,d){if(""===a.trim(c.term))return d;if(d.children&&d.children.length>0){for(var e=a.extend(!0,{},d),f=d.children.length-1;f>=0;f--){var g=d.children[f],h=b(c,g);null==h&&e.children.splice(f,1)}return e.children.length>0?e:b(c,e)}return d.text.toUpperCase().indexOf(c.term.toUpperCase())>-1?d:null}this.defaults={language:["select2/i18n/en"],matcher:b,minimumInputLength:0,templateResult:function(a){return a.text},templateSelection:function(a){return a.text}}};var r=new q;return r}),c("select2/options",["./defaults"],function(a){function b(b,c){this.options=b,null!=c&&this.fromElement(c),this.options=a.apply(this.options)}return b.prototype.fromElement=function(a){return null==this.options.multiple&&(this.options.multiple=a.prop("multiple")),this},b.prototype.get=function(a){return this.options[a]},b.prototype.set=function(a,b){this.options[a]=b},b}),c("select2/core",["jquery","./options","./utils","./keys"],function(a,b,c,d){var e=function(a,c){if(null==a.data("select2")){this.$element=a,this.id=this._generateId(a),c=c||{},this.options=new b(c,a),e.__super__.constructor.call(this);var d=this.options.get("dataAdapter");this.data=new d(a,this.options);var f=this.render();this._placeContainer(f);var g=this.options.get("selectionAdapter");this.selection=new g(a,this.options);var h=this.selection.render();this._placeSelection(h);var i=this.options.get("dropdownAdapter");this.dropdown=new i(a,this.options);var j=this.dropdown.render();this._placeDropdown(j);var k=this.options.get("resultsAdapter");this.results=new k(a,this.options,this.data);var l=this.results.render();this._placeResults(l);var m=this;this._bindAdapters(),this._registerDomEvents(),this._registerDataEvents(),this._registerSelectionEvents(),this._registerDropdownEvents(),this._registerResultsEvents(),this._registerEvents(),this.data.current(function(a){m.trigger("selection:update",{data:a})}),a.hide(),this._tabindex=a.attr("tabindex")||0,a.attr("tabindex","-1"),a.data("select2",this)}};return c.Extend(e,c.Observable),e.prototype._generateId=function(a){var b="";return b=null!=a.attr("id")?a.attr("id"):null!=a.attr("name")?a.attr("name")+"-"+c.generateChars(2):c.generateChars(4),b="select2-"+b},e.prototype._placeContainer=function(a){a.insertAfter(this.$element),a.width(this.$element.outerWidth(!1))},e.prototype._placeSelection=function(a){var b=this.$container.find(".selection");b.append(a)},e.prototype._placeDropdown=function(a){this.$dropdown=a;var b=this.$container.find(".dropdown-wrapper");b.append(a)},e.prototype._placeResults=function(a){var b=this.$dropdown.find(".results");b.append(a)},e.prototype._bindAdapters=function(){this.data.bind(this,this.$container),this.selection.bind(this,this.$container),this.dropdown.bind(this,this.$container),this.results.bind(this,this.$container)},e.prototype._registerDomEvents=function(){var a=this;this.$element.on("change.select2",function(){a.data.current(function(b){a.trigger("selection:update",{data:b})})})},e.prototype._registerDataEvents=function(){var a=this;this.data.on("results:message",function(b){a.trigger("results:message",b)})},e.prototype._registerSelectionEvents=function(){var a=this;this.selection.on("open",function(){a.open()}),this.selection.on("close",function(){a.close()}),this.selection.on("toggle",function(){a.toggleDropdown()}),this.selection.on("results:select",function(){a.trigger("results:select")}),this.selection.on("results:previous",function(){a.trigger("results:previous")}),this.selection.on("results:next",function(){a.trigger("results:next")}),this.selection.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.selection.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerDropdownEvents=function(){var a=this;this.dropdown.on("query",function(b){a.trigger("query",b)}),this.dropdown.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerResultsEvents=function(){var a=this;this.results.on("query:append",function(b){a.trigger("query:append",b)}),this.results.on("selected",function(b){a.trigger("select",b),a.close()}),this.results.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.results.on("results:focus",function(b){a.trigger("results:focus",b)})},e.prototype._registerEvents=function(){var a=this;this.on("open",function(){a.$container.addClass("open")}),this.on("close",function(){a.$container.removeClass("open")}),this.on("query",function(b){this.data.query(b,function(c){a.trigger("results:all",{data:c,query:b})})}),this.on("query:append",function(b){this.data.query(b,function(c){a.trigger("results:append",{data:c,query:b})})}),this.on("keypress",function(b){var c=b.which;a.isOpen()?c===d.ENTER?(a.trigger("results:select"),b.preventDefault()):c===d.UP?(a.trigger("results:previous"),b.preventDefault()):c===d.DOWN?(a.trigger("results:next"),b.preventDefault()):(c===d.ESC||c===d.TAB)&&(a.close(),b.preventDefault()):(c===d.ENTER||c===d.SPACE)&&(a.open(),b.preventDefault())})},e.prototype.toggleDropdown=function(){this.isOpen()?this.close():this.open()},e.prototype.open=function(){this.isOpen()||(this.trigger("query",{}),this.trigger("open"))},e.prototype.close=function(){this.isOpen()&&this.trigger("close")},e.prototype.isOpen=function(){return this.$container.hasClass("open")},e.prototype.destroy=function(){this.$container.remove(),this.$element.off(".select2"),this.$element.attr("tabindex",this._tabindex),this.$element.show(),this.$element.removeData("select2"),this.data.destroy(),this.selection.destroy(),this.dropdown.destroy(),this.results.destroy(),this.data=null,this.selection=null,this.dropdown=null,this.results=null},e.prototype.render=function(){var b=a('<span class="select2 select2-container select2-theme-default"><span class="selection"></span><span class="dropdown-wrapper" aria-hidden="true"></span></span>');return this.$container=b,b.data("element",this.$element),b},e}),c("select2/compat/matcher",[],function(){function a(a){function b(b,c){var d=$.extend(!0,{},c);if(null==b.term||""===$.trim(b.term))return d;if(c.children){for(var e=c.children.length-1;e>=0;e--){var f=c.children[e],g=a(b.term,f.text,f);g||d.children.splice(e,1)}if(d.children.length>0)return d}return a(b.term,c.text,c)?d:null}return b}return a}),c("jquery.select2",["jquery","select2/core"],function(a,b){return null==a.fn.select2&&(a.fn.select2=function(c){if(c=c||{},"object"==typeof c)this.each(function(){new b(a(this),c)});else{if("string"!=typeof c)throw new Error("Invalid arguments for Select2: "+c);var d=this.data("select2"),e=Array.prototype.slice.call(arguments,1);d[c](e)}}),b}),b("jquery.select2"),$.fn.select2.amd={define:c,require:b}}();
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b(a)},c.prototype.selectionContainer=function(){var a=$('<li class="choice"><span class="remove" role="presentation">&times;</span></li>');return a},c.prototype.update=function(a){if(this.clear(),0!==a.length){for(var b=[],c=0;c<a.length;c++){var d=a[c],e=this.display(d),f=this.selectionContainer();f.append(e),f.data("data",d),b.push(f)}this.$selection.find(".rendered-selection").append(b)}},c}),c("select2/selection/placeholder",["../utils"],function(){function a(a,b,c){this.placeholder=this.normalizePlaceholder(c.get("placeholder")),a.call(this,b,c)}return a.prototype.normalizePlaceholder=function(a,b){return"string"==typeof b&&(b={id:"",text:b}),b},a.prototype.update=function(a,b){var c=1==b.length&&b[0].id!=this.placeholder.id,d=b.length>1;if(d||c)return a.call(this,b);this.clear();var e=this.selectionContainer();e.html(this.display(this.placeholder)),e.addClass("placeholder").removeClass("choice"),this.$selection.find(".rendered-selection").append(e)},a}),c("select2/translation",[],function(){function a(a){this.dict=a||{}}return a.prototype.all=function(){return this.dict},a.prototype.get=function(a){return this.dict[a]},a.prototype.extend=function(a){this.dict=$.extend({},a.all(),this.dict)},a._cache={},a.loadPath=function(c){if(!(c in a._cache)){var d=b(c);a._cache[c]=d}return new a(a._cache[c])},a}),c("select2/data/base",["../utils"],function(a){function b(){b.__super__.constructor.call(this)}return a.Extend(b,a.Observable),b.prototype.current=function(){throw new Error("The `current` method must be defined in child classes.")},b.prototype.query=function(){throw new Error("The `query` method must be defined in child classes.")},b.prototype.bind=function(){},b.prototype.destroy=function(){},b.prototype.generateResultId=function(b,c){var d=b.id+"-result-";return d+=a.generateChars(4),d+=null!=c.id?"-"+c.id.toString():"-"+a.generateChars(4)},b}),c("select2/data/select",["./base","../utils","jquery"],function(a,b,c){function d(a,b){this.$element=a,this.options=b,d.__super__.constructor.call(this)}return b.Extend(d,a),d.prototype.current=function(a){var b=[],d=this;this.$element.find(":selected").each(function(){var a=c(this),e=d.item(a);b.push(e)}),a(b)},d.prototype.select=function(a){var b=this;if(this.$element.prop("multiple"))this.current(function(c){var d=[];a=[a],a.push.apply(a,c);for(var e=0;e<a.length;e++)id=a[e].id,-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")});else{var c=a.id;this.$element.val(c),this.$element.trigger("change")}},d.prototype.unselect=function(a){var b=this;this.$element.prop("multiple")&&this.current(function(c){for(var d=[],e=0;e<c.length;e++)id=c[e].id,id!==a.id&&-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")})},d.prototype.bind=function(a){var b=this;this.container=a,a.on("select",function(a){b.select(a.data)}),a.on("unselect",function(a){b.unselect(a.data)})},d.prototype.destroy=function(){this.$element.find("*").each(function(){c.removeData(this,"data")})},d.prototype.query=function(a,b){var d=[],e=this,f=this.$element.children();f.each(function(){var b=c(this);if(b.is("option")||b.is("optgroup")){var f=e.item(b),g=e.matches(a,f);null!==g&&d.push(g)}}),b(d)},d.prototype.option=function(a){var b=document.createElement("option");b.value=a.id,a.disabled&&(b.disabled=!0),a.selected&&(b.selected=!0),b.innerText=a.text;var d=c(b),e=this._normalizeItem(a);return c.data(b,"data",e),d},d.prototype.item=function(a){var b={};if(b=c.data(a[0],"data"),null!=b)return b;if(a.is("option"))b={id:a.val(),text:a.html(),disabled:a.prop("disabled"),selected:a.prop("selected")};else if(a.is("optgroup")){b={text:a.attr("label"),children:[]};for(var d=a.children("option"),e=[],f=0;f<d.length;f++){var g=c(d[f]),h=this.item(g);e.push(h)}b.children=e}return b=this._normalizeItem(b),c.data(a[0],"data",b),b},d.prototype._normalizeItem=function(a){null==a.text&&(a={id:a,text:a});var b={selected:!1,disabled:!1};return null!=a.id&&(a.id=a.id.toString()),null!=a.text&&(a.text=a.text.toString()),null==a._resultId&&a.id&&null!=this.container&&(a._resultId=this.generateResultId(this.container,a)),c.extend({},b,a)},d.prototype.matches=function(a,b){var c=this.options.get("matcher");return c(a,b)},d}),c("select2/data/array",["./select","../utils","jquery"],function(a,b,c){function d(a,b){var c=b.get("data");d.__super__.constructor.call(this,a,b),this.convertToOptions(c)}return b.Extend(d,a),d.prototype.select=function(a){var b=this.$element.find('option[value="'+a.id+'"]');0===b.length&&(b=this.option(a),this.$element.append(b)),d.__super__.select.call(this,a)},d.prototype.convertToOptions=function(a){function b(a){return function(){return c(this).val()==a.id}}for(var d=this,e=this.$element.find("option"),f=e.map(function(){return d.item(c(this)).id}).get(),g=0;g<a.length;g++){var h=a[g];if(h.id=h.id.toString(),f.indexOf(h.id)>=0){var i=e.filter(b(h)),j=this.item(i),k=(c.extend(!0,{},j,h),this.option(j));i.replaceWith(k)}else{var l=this.option(h);this.$element.append(l)}}},d}),c("select2/data/ajax",["./array","../utils","jquery"],function(a,b,c){function d(b,c){this.ajaxOptions=c.get("ajax"),null!=this.ajaxOptions.processResults&&(this.processResults=this.ajaxOptions.processResults),a.__super__.constructor.call(this,b,c)}return b.Extend(d,a),d.prototype.processResults=function(a){return a},d.prototype.query=function(a,b){function d(){var a=c.ajax(f);a.success(function(a){var c=e.processResults(a);b(c)})}var e=this,f=c.extend({type:"GET"},this.ajaxOptions);"function"==typeof f.url&&(f.url=f.url(a)),"function"==typeof f.data&&(f.data=f.data(a)),this.ajaxOptions.delay&&""!==a.term?(this._queryTimeout&&window.clearTimeout(this._queryTimeout),this._queryTimeout=window.setTimeout(d,this.ajaxOptions.delay)):d()},d}),c("select2/data/tags",[],function(){function a(a,b,c){var d=c.get("tags");if(a.call(this,b,c),$.isArray(d))for(var e=0;e<d.length;e++){var f=d[e],g=this._normalizeItem(f),h=this.option(g);this.$element.append(h)}}return a.prototype.query=function(a,b,c){function d(a,f){for(var g=0;g<a.length;g++){var h=a[g],i=null!=h.children&&!d(h.children,!0),j=h.text===b.term;if(j||i)return f?!1:void c(a)}if(f)return!0;var k=e.createTag(b),l=e.option(k);l.attr("data-select2-tag",!0),e.$element.append(l),e.insertTag(a,k),c(a)}var e=this;return this._removeOldTags(),null==b.term||""===b.term||null!=b.page?void a.call(this,b,c):void a.call(this,b,d)},a.prototype.createTag=function(a,b){return{id:b.term,text:b.term}},a.prototype.insertTag=function(a,b,c){b.unshift(c)},a.prototype._removeOldTags=function(){var a=(this._lastTag,this.$element.find("option[data-select2-tag]"));a.each(function(){this.selected||$(this).remove()})},a}),c("select2/data/minimumInputLength",[],function(){function a(a,b,c){this.minimumInputLength=c.get("minimumInputLength"),a.call(this,b,c)}return a.prototype.query=function(a,b,c){return b.term=b.term||"",b.term.length<this.minimumInputLength?void this.trigger("results:message",{message:"inputTooShort",args:{minimum:this.minimumInputLength,input:b.term,params:b}}):void a.call(this,b,c)},a}),c("select2/dropdown",["./utils"],function(a){function b(a){this.$element=a}return a.Extend(b,a.Observable),b.prototype.render=function(){var a=$('<span class="dropdown"><span class="results"></span></span>');return this.$dropdown=a,a},b.prototype.destroy=function(){this.$dropdown.remove()},b.prototype.bind=function(){},b}),c("select2/dropdown/search",["../utils"],function(){function a(){}return a.prototype.render=function(a){var b=a.call(this),c=$('<span class="search"><input type="search" name="search" tabindex="-1" role="textbox" /></span>');return this.$searchContainer=c,this.$search=c.find("input"),b.prepend(c),b},a.prototype.bind=function(a,b,c){var d=this;a.call(this,b,c),this.$search.on("keydown",function(a){d.trigger("keypress",a),d._keyUpPrevented=a.isDefaultPrevented()}),this.$search.on("keyup",function(a){d.handleSearch(a)}),b.on("open",function(){d.$search.attr("tabindex",0),d.$search.focus()}),b.on("close",function(){d.$search.attr("tabindex",-1),d.$search.val("")}),b.on("results:all",function(a){if(null==a.query.term||""===a.query.term){var b=d.showSearch(a);b?d.$searchContainer.show():d.$searchContainer.hide()}})},a.prototype.handleSearch=function(){if(!this._keyUpPrevented){var a=this.$search.val();this.trigger("query",{term:a})}this._keyUpPrevented=!1},a.prototype.showSearch=function(){return!0},a}),c("select2/dropdown/hidePlaceholder",[],function(){function a(a,b,c,d){this.placeholder=this.normalizePlaceholder(c.get("placeholder")),a.call(this,b,c,d)}return a.prototype.append=function(a,b){b=this.removePlaceholder(b),a.call(this,b)},a.prototype.normalizePlaceholder=function(a,b){return"string"==typeof b&&(b={id:"",text:b}),b},a.prototype.removePlaceholder=function(a,b){for(var c=b.slice(0),d=b.length-1;d>=0;d--){var e=b[d];this.placeholder.id===e.id&&c.splice(d,1)}return c},a}),c("select2/dropdown/infiniteScroll",["jquery"],function(a){function b(a,b,c,d){this.lastParams={},a.call(this,b,c,d),this.$loadingMore=this.createLoadingMore(),this.loading=!1}return b.prototype.append=function(a,b){this.$loadingMore.remove(),a.call(this,b),b.length>0&&this.$results.append(this.$loadingMore),this.loading=!1},b.prototype.bind=function(b,c,d){var e=this;b.call(this,c,d),c.on("query",function(a){e.lastParams=a,e.loading=!0}),c.on("query:append",function(a){e.lastParams=a,e.loading=!0}),this.$results.on("scroll",function(){var b=a.contains(document.documentElement,e.$loadingMore[0]);if(!e.loading&&b){var c=e.$results.offset().top+e.$results.outerHeight(!1),d=e.$loadingMore.offset().top+e.$loadingMore.outerHeight(!1);c+50>=d&&e.loadMore()}})},b.prototype.loadMore=function(){this.loading=!0;var b=a.extend({},{page:1},this.lastParams);b.page++,this.trigger("query:append",b)},b.prototype.createLoadingMore=function(){var b=a('<li class="option load-more" role="treeitem"></li>'),c=this.options.get("translations").get("loadingMore");return b.html(c(this.lastParams)),b},b}),c("select2/i18n/en",[],function(){return{inputTooShort:function(a){var b=a.minimum-a.input.length,c="Please enter "+b+" or more character";return 1!=b&&(c+="s"),c},loadingMore:function(){return"Loading more results…"},noResults:function(){return"No results found"}}}),c("select2/defaults",["jquery","./results","./selection/single","./selection/multiple","./selection/placeholder","./utils","./translation","./data/select","./data/array","./data/ajax","./data/tags","./data/minimumInputLength","./dropdown","./dropdown/search","./dropdown/hidePlaceholder","./dropdown/infiniteScroll","./i18n/en"],function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){function q(){this.reset()}q.prototype.apply=function(q){if(q=a.extend({},this.defaults,q),null==q.dataAdapter&&(q.dataAdapter=null!=q.ajax?j:null!=q.data?i:h),q.minimumInputLength>0&&(q.dataAdapter=f.Decorate(q.dataAdapter,l)),null!=q.tags&&(q.dataAdapter=f.Decorate(q.dataAdapter,k)),null==q.resultsAdapter&&(q.resultsAdapter=b,null!=q.ajax&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,p)),null!=q.placeholder&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,o))),null==q.dropdownAdapter){var r=f.Decorate(m,n);q.dropdownAdapter=r}if(null==q.selectionAdapter&&(q.selectionAdapter=q.multiple?d:c,null!=q.placeholder&&(q.selectionAdapter=f.Decorate(q.selectionAdapter,e))),"string"==typeof q.language&&(q.language=[q.language]),a.isArray(q.language)){for(var s=new g,t=q.language.concat(this.defaults.language),u=0;u<t.length;u++){var v=t[u],w={};try{w=g.loadPath(v)}catch(x){v="select2/i18n/"+v,w=g.loadPath(v)}s.extend(w)}q.translations=s}else q.translations=new Translations(q.language);return q},q.prototype.reset=function(){function b(c,d){if(""===a.trim(c.term))return d;if(d.children&&d.children.length>0){for(var e=a.extend(!0,{},d),f=d.children.length-1;f>=0;f--){var g=d.children[f],h=b(c,g);null==h&&e.children.splice(f,1)}return e.children.length>0?e:b(c,e)}return d.text.toUpperCase().indexOf(c.term.toUpperCase())>-1?d:null}this.defaults={language:["select2/i18n/en"],matcher:b,minimumInputLength:0,theme:"default",templateResult:function(a){return a.text},templateSelection:function(a){return a.text}}};var r=new q;return r}),c("select2/options",["./defaults"],function(a){function b(b,c){this.options=b,null!=c&&this.fromElement(c),this.options=a.apply(this.options)}return b.prototype.fromElement=function(a){return null==this.options.multiple&&(this.options.multiple=a.prop("multiple")),this},b.prototype.get=function(a){return this.options[a]},b.prototype.set=function(a,b){this.options[a]=b},b}),c("select2/core",["jquery","./options","./utils","./keys"],function(a,b,c,d){var e=function(a,c){if(null==a.data("select2")){this.$element=a,this.id=this._generateId(a),c=c||{},this.options=new b(c,a),e.__super__.constructor.call(this);var d=this.options.get("dataAdapter");this.data=new d(a,this.options);var f=this.render();this._placeContainer(f);var g=this.options.get("selectionAdapter");this.selection=new g(a,this.options);var h=this.selection.render();this._placeSelection(h);var i=this.options.get("dropdownAdapter");this.dropdown=new i(a,this.options);var j=this.dropdown.render();this._placeDropdown(j);var k=this.options.get("resultsAdapter");this.results=new k(a,this.options,this.data);var l=this.results.render();this._placeResults(l);var m=this;this._bindAdapters(),this._registerDomEvents(),this._registerDataEvents(),this._registerSelectionEvents(),this._registerDropdownEvents(),this._registerResultsEvents(),this._registerEvents(),this.data.current(function(a){m.trigger("selection:update",{data:a})}),a.hide(),this._tabindex=a.attr("tabindex")||0,a.attr("tabindex","-1"),a.data("select2",this)}};return c.Extend(e,c.Observable),e.prototype._generateId=function(a){var b="";return b=null!=a.attr("id")?a.attr("id"):null!=a.attr("name")?a.attr("name")+"-"+c.generateChars(2):c.generateChars(4),b="select2-"+b},e.prototype._placeContainer=function(a){a.insertAfter(this.$element),a.width(this.$element.outerWidth(!1))},e.prototype._placeSelection=function(a){var b=this.$container.find(".selection");b.append(a)},e.prototype._placeDropdown=function(a){this.$dropdown=a;var b=this.$container.find(".dropdown-wrapper");b.append(a)},e.prototype._placeResults=function(a){var b=this.$dropdown.find(".results");b.append(a)},e.prototype._bindAdapters=function(){this.data.bind(this,this.$container),this.selection.bind(this,this.$container),this.dropdown.bind(this,this.$container),this.results.bind(this,this.$container)},e.prototype._registerDomEvents=function(){var a=this;this.$element.on("change.select2",function(){a.data.current(function(b){a.trigger("selection:update",{data:b})})})},e.prototype._registerDataEvents=function(){var a=this;this.data.on("results:message",function(b){a.trigger("results:message",b)})},e.prototype._registerSelectionEvents=function(){var a=this;this.selection.on("open",function(){a.open()}),this.selection.on("close",function(){a.close()}),this.selection.on("toggle",function(){a.toggleDropdown()}),this.selection.on("results:select",function(){a.trigger("results:select")}),this.selection.on("results:previous",function(){a.trigger("results:previous")}),this.selection.on("results:next",function(){a.trigger("results:next")}),this.selection.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.selection.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerDropdownEvents=function(){var a=this;this.dropdown.on("query",function(b){a.trigger("query",b)}),this.dropdown.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerResultsEvents=function(){var a=this;this.results.on("query:append",function(b){a.trigger("query:append",b)}),this.results.on("selected",function(b){a.trigger("select",b),a.close()}),this.results.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.results.on("results:focus",function(b){a.trigger("results:focus",b)})},e.prototype._registerEvents=function(){var a=this;this.on("open",function(){a.$container.addClass("open")}),this.on("close",function(){a.$container.removeClass("open")}),this.on("query",function(b){this.data.query(b,function(c){a.trigger("results:all",{data:c,query:b})})}),this.on("query:append",function(b){this.data.query(b,function(c){a.trigger("results:append",{data:c,query:b})})}),this.on("keypress",function(b){var c=b.which;a.isOpen()?c===d.ENTER?(a.trigger("results:select"),b.preventDefault()):c===d.UP?(a.trigger("results:previous"),b.preventDefault()):c===d.DOWN?(a.trigger("results:next"),b.preventDefault()):(c===d.ESC||c===d.TAB)&&(a.close(),b.preventDefault()):(c===d.ENTER||c===d.SPACE)&&(a.open(),b.preventDefault())})},e.prototype.toggleDropdown=function(){this.isOpen()?this.close():this.open()},e.prototype.open=function(){this.isOpen()||(this.trigger("query",{}),this.trigger("open"))},e.prototype.close=function(){this.isOpen()&&this.trigger("close")},e.prototype.isOpen=function(){return this.$container.hasClass("open")},e.prototype.destroy=function(){this.$container.remove(),this.$element.off(".select2"),this.$element.attr("tabindex",this._tabindex),this.$element.show(),this.$element.removeData("select2"),this.data.destroy(),this.selection.destroy(),this.dropdown.destroy(),this.results.destroy(),this.data=null,this.selection=null,this.dropdown=null,this.results=null},e.prototype.render=function(){var b=a('<span class="select2 select2-container"><span class="selection"></span><span class="dropdown-wrapper" aria-hidden="true"></span></span>');return this.$container=b,this.$container.addClass("select2-theme-"+this.options.get("theme")),b.data("element",this.$element),b},e}),c("select2/compat/matcher",[],function(){function a(a){function b(b,c){var d=$.extend(!0,{},c);if(null==b.term||""===$.trim(b.term))return d;if(c.children){for(var e=c.children.length-1;e>=0;e--){var f=c.children[e],g=a(b.term,f.text,f);g||d.children.splice(e,1)}if(d.children.length>0)return d}return a(b.term,c.text,c)?d:null}return b}return a}),c("jquery.select2",["jquery","select2/core"],function(a,b){return null==a.fn.select2&&(a.fn.select2=function(c){if(c=c||{},"object"==typeof c)this.each(function(){new b(a(this),c)});else{if("string"!=typeof c)throw new Error("Invalid arguments for Select2: "+c);var d=this.data("select2"),e=Array.prototype.slice.call(arguments,1);d[c](e)}}),b}),b("jquery.select2"),$.fn.select2.amd={define:c,require:b}}();
\ No newline at end of file
diff --git a/dist/js/select2.js b/dist/js/select2.js
index af27af32..05cdd80d 100644
--- a/dist/js/select2.js
+++ b/dist/js/select2.js
@@ -2353,6 +2353,7 @@ define('select2/defaults',[
       language: ['select2/i18n/en'],
       matcher: matcher,
       minimumInputLength: 0,
+      theme: 'default',
       templateResult: function (result) {
         return result.text;
       },
@@ -2736,7 +2737,7 @@ define('select2/core',[
 
   Select2.prototype.render = function () {
     var $container = $(
-      '<span class="select2 select2-container select2-theme-default">' +
+      '<span class="select2 select2-container">' +
         '<span class="selection"></span>' +
         '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
       '</span>'
@@ -2744,6 +2745,8 @@ define('select2/core',[
 
     this.$container = $container;
 
+    this.$container.addClass('select2-theme-' + this.options.get('theme'));
+
     $container.data('element', this.$element);
 
     return $container;
diff --git a/dist/js/select2.min.js b/dist/js/select2.min.js
index cecf556f..78ba1e85 100644
--- a/dist/js/select2.min.js
+++ b/dist/js/select2.min.js
@@ -1 +1 @@
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b.trigger("selected",{originalEvent:a,data:d})}),this.$results.on("mouseenter",".option[aria-selected]",function(){var a=$(this).data("data");b.$results.find(".option.highlighted").removeClass("highlighted"),b.trigger("results:focus",{data:a,element:$(this)})}),this.$results.on("mouseleave",".option",function(){$(this).hasClass("highlighted")&&($(this).removeClass("highlighted"),b.$results.removeAttr("aria-activedescendant"))})},b.prototype.destroy=function(){this.$results.remove()},b.prototype.ensureHighlightVisible=function(){var a=this.$results.find(".highlighted");if(0!==a.length){var b=this.$results.find("[aria-selected]"),c=b.index(a),d=this.$results.offset().top,e=a.offset().top,f=this.$results.scrollTop()+(e-d),g=e-d;f-=2*a.outerHeight(!1),2>=c?this.$results.scrollTop(0):(g>this.$results.outerHeight()||0>g)&&this.$results.scrollTop(f)}},b.prototype.template=function(a,b){var c=this.options.get("templateResult");b.innerHTML=c(a)},b}),c("select2/selection/base",["../utils"],function(a){function b(a,c){this.$element=a,this.options=c,b.__super__.constructor.call(this)}return a.Extend(b,a.Observable),b.prototype.render=function(){throw new Error("The `render` method must be defined in child classes.")},b.prototype.bind=function(a){var b=this;a.on("selection:update",function(a){b.update(a.data)}),a.on("open",function(){$(document.body).on("mousedown.select2."+a.id,function(a){var b=$(a.target),c=b.closest(".select2"),d=$(".select2.open");d.each(function(){var a=$(this);if(this!=c[0]){var b=a.data("element");b.select2("close")}})}),a.on("close",function(){$(document.body).off("mousedown.select2."+a.id)})})},b.prototype.destroy=function(){$(document.body).off(".select2."+container.id)},b.prototype.update=function(){throw new Error("The `update` method must be defined in child classes.")},b}),c("select2/keys",[],function(){var a={BACKSPACE:8,TAB:9,ENTER:13,SHIFT:16,CTRL:17,ALT:18,ESC:27,SPACE:32,PAGE_UP:33,PAGE_DOWN:34,END:35,HOME:36,LEFT:37,UP:38,RIGHT:39,DOWN:40,DELETE:46,isArrow:function(a){switch(a=a.which?a.which:a){case KEY.LEFT:case KEY.RIGHT:case KEY.UP:case KEY.DOWN:return!0}return!1}};return a}),c("select2/selection/single",["./base","../utils","../keys"],function(a,b,c){function d(){d.__super__.constructor.apply(this,arguments)}return b.Extend(d,a),d.prototype.render=function(){var a=$('<span class="single-select" tabindex="0" role="combobox" aria-autocomplete="list" aria-haspopup="true" aria-expanded="false"><span class="rendered-selection"></span></span>');return a.attr("title",this.$element.attr("title")),this.$selection=a,a},d.prototype.bind=function(a){var b=this;d.__super__.bind.apply(this,arguments);var e=a.id+"-container",f=a.id+"-results";this.$selection.find(".rendered-selection").attr("id",e),this.$selection.attr("aria-labelledby",e),this.$selection.attr("aria-owns",f),this.$selection.on("mousedown",function(a){1===a.which&&b.trigger("toggle",{originalEvent:a})}),a.on("open",function(){b.$selection.attr("aria-expanded","true")}),a.on("close",function(){b.$selection.attr("aria-expanded","false"),b.$selection.removeAttr("aria-activedescendant"),b.$selection.focus()}),this.$selection.on("focus",function(){}),this.$selection.on("blur",function(){}),this.$selection.on("keydown",function(a){b.trigger("keypress",a),a.which===c.SPACE&&a.preventDefault()}),a.on("results:focus",function(a){b.$selection.attr("aria-activedescendant",a.data._resultId)}),a.on("selection:update",function(a){b.update(a.data)})},d.prototype.clear=function(){this.$selection.find(".rendered-selection").empty()},d.prototype.display=function(a){var b=this.options.get("templateSelection");return b(a)},d.prototype.selectionContainer=function(){return $("<span></span>")},d.prototype.update=function(a){if(0===a.length)return void this.clear();var b=a[0],c=this.display(b);this.$selection.find(".rendered-selection").html(c)},d}),c("select2/selection/multiple",["./base","../utils"],function(a,b){function c(){c.__super__.constructor.apply(this,arguments)}return b.Extend(c,a),c.prototype.render=function(){var a=$('<span class="multiple-select"><ul class="rendered-selection"></ul></span>');return this.$selection=a,a},c.prototype.bind=function(){var a=this;c.__super__.bind.apply(this,arguments),this.$selection.on("click",function(b){a.trigger("toggle",{originalEvent:b})}),this.$selection.on("click",".remove",function(b){var c=$(this),d=c.parent(),e=d.data("data");a.trigger("unselected",{originalEvent:b,data:e})})},c.prototype.clear=function(){this.$selection.find(".rendered-selection").empty()},c.prototype.display=function(a){var b=this.options.get("templateSelection");return b(a)},c.prototype.selectionContainer=function(){var a=$('<li class="choice"><span class="remove" role="presentation">&times;</span></li>');return a},c.prototype.update=function(a){if(this.clear(),0!==a.length){for(var b=[],c=0;c<a.length;c++){var d=a[c],e=this.display(d),f=this.selectionContainer();f.append(e),f.data("data",d),b.push(f)}this.$selection.find(".rendered-selection").append(b)}},c}),c("select2/selection/placeholder",["../utils"],function(){function a(a,b,c){this.placeholder=this.normalizePlaceholder(c.get("placeholder")),a.call(this,b,c)}return a.prototype.normalizePlaceholder=function(a,b){return"string"==typeof b&&(b={id:"",text:b}),b},a.prototype.update=function(a,b){var c=1==b.length&&b[0].id!=this.placeholder.id,d=b.length>1;if(d||c)return a.call(this,b);this.clear();var e=this.selectionContainer();e.html(this.display(this.placeholder)),e.addClass("placeholder").removeClass("choice"),this.$selection.find(".rendered-selection").append(e)},a}),c("select2/translation",[],function(){function a(a){this.dict=a||{}}return a.prototype.all=function(){return this.dict},a.prototype.get=function(a){return this.dict[a]},a.prototype.extend=function(a){this.dict=$.extend({},a.all(),this.dict)},a._cache={},a.loadPath=function(c){if(!(c in a._cache)){var d=b(c);a._cache[c]=d}return new a(a._cache[c])},a}),c("select2/data/base",["../utils"],function(a){function b(){b.__super__.constructor.call(this)}return a.Extend(b,a.Observable),b.prototype.current=function(){throw new Error("The `current` method must be defined in child classes.")},b.prototype.query=function(){throw new Error("The `query` method must be defined in child classes.")},b.prototype.bind=function(){},b.prototype.destroy=function(){},b.prototype.generateResultId=function(b,c){var d=b.id+"-result-";return d+=a.generateChars(4),d+=null!=c.id?"-"+c.id.toString():"-"+a.generateChars(4)},b}),c("select2/data/select",["./base","../utils","jquery"],function(a,b,c){function d(a,b){this.$element=a,this.options=b,d.__super__.constructor.call(this)}return b.Extend(d,a),d.prototype.current=function(a){var b=[],d=this;this.$element.find(":selected").each(function(){var a=c(this),e=d.item(a);b.push(e)}),a(b)},d.prototype.select=function(a){var b=this;if(this.$element.prop("multiple"))this.current(function(c){var d=[];a=[a],a.push.apply(a,c);for(var e=0;e<a.length;e++)id=a[e].id,-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")});else{var c=a.id;this.$element.val(c),this.$element.trigger("change")}},d.prototype.unselect=function(a){var b=this;this.$element.prop("multiple")&&this.current(function(c){for(var d=[],e=0;e<c.length;e++)id=c[e].id,id!==a.id&&-1===d.indexOf(id)&&d.push(id);b.$element.val(d),b.$element.trigger("change")})},d.prototype.bind=function(a){var b=this;this.container=a,a.on("select",function(a){b.select(a.data)}),a.on("unselect",function(a){b.unselect(a.data)})},d.prototype.destroy=function(){this.$element.find("*").each(function(){c.removeData(this,"data")})},d.prototype.query=function(a,b){var d=[],e=this,f=this.$element.children();f.each(function(){var b=c(this);if(b.is("option")||b.is("optgroup")){var f=e.item(b),g=e.matches(a,f);null!==g&&d.push(g)}}),b(d)},d.prototype.option=function(a){var b=document.createElement("option");b.value=a.id,a.disabled&&(b.disabled=!0),a.selected&&(b.selected=!0),b.innerText=a.text;var d=c(b),e=this._normalizeItem(a);return c.data(b,"data",e),d},d.prototype.item=function(a){var b={};if(b=c.data(a[0],"data"),null!=b)return b;if(a.is("option"))b={id:a.val(),text:a.html(),disabled:a.prop("disabled"),selected:a.prop("selected")};else if(a.is("optgroup")){b={text:a.attr("label"),children:[]};for(var d=a.children("option"),e=[],f=0;f<d.length;f++){var g=c(d[f]),h=this.item(g);e.push(h)}b.children=e}return b=this._normalizeItem(b),c.data(a[0],"data",b),b},d.prototype._normalizeItem=function(a){null==a.text&&(a={id:a,text:a});var b={selected:!1,disabled:!1};return null!=a.id&&(a.id=a.id.toString()),null!=a.text&&(a.text=a.text.toString()),null==a._resultId&&a.id&&null!=this.container&&(a._resultId=this.generateResultId(this.container,a)),c.extend({},b,a)},d.prototype.matches=function(a,b){var c=this.options.get("matcher");return c(a,b)},d}),c("select2/data/array",["./select","../utils","jquery"],function(a,b,c){function d(a,b){var c=b.get("data");d.__super__.constructor.call(this,a,b),this.convertToOptions(c)}return b.Extend(d,a),d.prototype.select=function(a){var b=this.$element.find('option[value="'+a.id+'"]');0===b.length&&(b=this.option(a),this.$element.append(b)),d.__super__.select.call(this,a)},d.prototype.convertToOptions=function(a){function b(a){return function(){return c(this).val()==a.id}}for(var d=this,e=this.$element.find("option"),f=e.map(function(){return d.item(c(this)).id}).get(),g=0;g<a.length;g++){var h=a[g];if(h.id=h.id.toString(),f.indexOf(h.id)>=0){var i=e.filter(b(h)),j=this.item(i),k=(c.extend(!0,{},j,h),this.option(j));i.replaceWith(k)}else{var l=this.option(h);this.$element.append(l)}}},d}),c("select2/data/ajax",["./array","../utils","jquery"],function(a,b,c){function d(b,c){this.ajaxOptions=c.get("ajax"),null!=this.ajaxOptions.processResults&&(this.processResults=this.ajaxOptions.processResults),a.__super__.constructor.call(this,b,c)}return b.Extend(d,a),d.prototype.processResults=function(a){return a},d.prototype.query=function(a,b){function d(){var a=c.ajax(f);a.success(function(a){var c=e.processResults(a);b(c)})}var e=this,f=c.extend({type:"GET"},this.ajaxOptions);"function"==typeof f.url&&(f.url=f.url(a)),"function"==typeof f.data&&(f.data=f.data(a)),this.ajaxOptions.delay&&""!==a.term?(this._queryTimeout&&window.clearTimeout(this._queryTimeout),this._queryTimeout=window.setTimeout(d,this.ajaxOptions.delay)):d()},d}),c("select2/data/tags",[],function(){function a(a,b,c){var d=c.get("tags");if(a.call(this,b,c),$.isArray(d))for(var e=0;e<d.length;e++){var f=d[e],g=this._normalizeItem(f),h=this.option(g);this.$element.append(h)}}return a.prototype.query=function(a,b,c){function d(a,f){for(var g=0;g<a.length;g++){var h=a[g],i=null!=h.children&&!d(h.children,!0),j=h.text===b.term;if(j||i)return f?!1:void c(a)}if(f)return!0;var k=e.createTag(b),l=e.option(k);l.attr("data-select2-tag",!0),e.$element.append(l),e.insertTag(a,k),c(a)}var e=this;return this._removeOldTags(),null==b.term||""===b.term||null!=b.page?void a.call(this,b,c):void a.call(this,b,d)},a.prototype.createTag=function(a,b){return{id:b.term,text:b.term}},a.prototype.insertTag=function(a,b,c){b.unshift(c)},a.prototype._removeOldTags=function(){var a=(this._lastTag,this.$element.find("option[data-select2-tag]"));a.each(function(){this.selected||$(this).remove()})},a}),c("select2/data/minimumInputLength",[],function(){function a(a,b,c){this.minimumInputLength=c.get("minimumInputLength"),a.call(this,b,c)}return a.prototype.query=function(a,b,c){return b.term=b.term||"",b.term.length<this.minimumInputLength?void this.trigger("results:message",{message:"inputTooShort",args:{minimum:this.minimumInputLength,input:b.term,params:b}}):void a.call(this,b,c)},a}),c("select2/dropdown",["./utils"],function(a){function b(a){this.$element=a}return a.Extend(b,a.Observable),b.prototype.render=function(){var a=$('<span class="dropdown"><span class="results"></span></span>');return this.$dropdown=a,a},b.prototype.destroy=function(){this.$dropdown.remove()},b.prototype.bind=function(){},b}),c("select2/dropdown/search",["../utils"],function(){function a(){}return a.prototype.render=function(a){var b=a.call(this),c=$('<span class="search"><input type="search" name="search" tabindex="-1" role="textbox" /></span>');return this.$searchContainer=c,this.$search=c.find("input"),b.prepend(c),b},a.prototype.bind=function(a,b,c){var d=this;a.call(this,b,c),this.$search.on("keydown",function(a){d.trigger("keypress",a),d._keyUpPrevented=a.isDefaultPrevented()}),this.$search.on("keyup",function(a){d.handleSearch(a)}),b.on("open",function(){d.$search.attr("tabindex",0),d.$search.focus()}),b.on("close",function(){d.$search.attr("tabindex",-1),d.$search.val("")}),b.on("results:all",function(a){if(null==a.query.term||""===a.query.term){var b=d.showSearch(a);b?d.$searchContainer.show():d.$searchContainer.hide()}})},a.prototype.handleSearch=function(){if(!this._keyUpPrevented){var a=this.$search.val();this.trigger("query",{term:a})}this._keyUpPrevented=!1},a.prototype.showSearch=function(){return!0},a}),c("select2/dropdown/hidePlaceholder",[],function(){function a(a,b,c,d){this.placeholder=this.normalizePlaceholder(c.get("placeholder")),a.call(this,b,c,d)}return a.prototype.append=function(a,b){b=this.removePlaceholder(b),a.call(this,b)},a.prototype.normalizePlaceholder=function(a,b){return"string"==typeof b&&(b={id:"",text:b}),b},a.prototype.removePlaceholder=function(a,b){for(var c=b.slice(0),d=b.length-1;d>=0;d--){var e=b[d];this.placeholder.id===e.id&&c.splice(d,1)}return c},a}),c("select2/dropdown/infiniteScroll",["jquery"],function(a){function b(a,b,c,d){this.lastParams={},a.call(this,b,c,d),this.$loadingMore=this.createLoadingMore(),this.loading=!1}return b.prototype.append=function(a,b){this.$loadingMore.remove(),a.call(this,b),b.length>0&&this.$results.append(this.$loadingMore),this.loading=!1},b.prototype.bind=function(b,c,d){var e=this;b.call(this,c,d),c.on("query",function(a){e.lastParams=a,e.loading=!0}),c.on("query:append",function(a){e.lastParams=a,e.loading=!0}),this.$results.on("scroll",function(){var b=a.contains(document.documentElement,e.$loadingMore[0]);if(!e.loading&&b){var c=e.$results.offset().top+e.$results.outerHeight(!1),d=e.$loadingMore.offset().top+e.$loadingMore.outerHeight(!1);c+50>=d&&e.loadMore()}})},b.prototype.loadMore=function(){this.loading=!0;var b=a.extend({},{page:1},this.lastParams);b.page++,this.trigger("query:append",b)},b.prototype.createLoadingMore=function(){var b=a('<li class="option load-more" role="treeitem"></li>'),c=this.options.get("translations").get("loadingMore");return b.html(c(this.lastParams)),b},b}),c("select2/i18n/en",[],function(){return{inputTooShort:function(a){var b=a.minimum-a.input.length,c="Please enter "+b+" or more character";return 1!=b&&(c+="s"),c},loadingMore:function(){return"Loading more results…"},noResults:function(){return"No results found"}}}),c("select2/defaults",["jquery","./results","./selection/single","./selection/multiple","./selection/placeholder","./utils","./translation","./data/select","./data/array","./data/ajax","./data/tags","./data/minimumInputLength","./dropdown","./dropdown/search","./dropdown/hidePlaceholder","./dropdown/infiniteScroll","./i18n/en"],function(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p){function q(){this.reset()}q.prototype.apply=function(q){if(q=a.extend({},this.defaults,q),null==q.dataAdapter&&(q.dataAdapter=null!=q.ajax?j:null!=q.data?i:h),q.minimumInputLength>0&&(q.dataAdapter=f.Decorate(q.dataAdapter,l)),null!=q.tags&&(q.dataAdapter=f.Decorate(q.dataAdapter,k)),null==q.resultsAdapter&&(q.resultsAdapter=b,null!=q.ajax&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,p)),null!=q.placeholder&&(q.resultsAdapter=f.Decorate(q.resultsAdapter,o))),null==q.dropdownAdapter){var r=f.Decorate(m,n);q.dropdownAdapter=r}if(null==q.selectionAdapter&&(q.selectionAdapter=q.multiple?d:c,null!=q.placeholder&&(q.selectionAdapter=f.Decorate(q.selectionAdapter,e))),"string"==typeof q.language&&(q.language=[q.language]),a.isArray(q.language)){for(var s=new g,t=q.language.concat(this.defaults.language),u=0;u<t.length;u++){var v=t[u],w={};try{w=g.loadPath(v)}catch(x){v="select2/i18n/"+v,w=g.loadPath(v)}s.extend(w)}q.translations=s}else q.translations=new Translations(q.language);return q},q.prototype.reset=function(){function b(c,d){if(""===a.trim(c.term))return d;if(d.children&&d.children.length>0){for(var e=a.extend(!0,{},d),f=d.children.length-1;f>=0;f--){var g=d.children[f],h=b(c,g);null==h&&e.children.splice(f,1)}return e.children.length>0?e:b(c,e)}return d.text.toUpperCase().indexOf(c.term.toUpperCase())>-1?d:null}this.defaults={language:["select2/i18n/en"],matcher:b,minimumInputLength:0,theme:"default",templateResult:function(a){return a.text},templateSelection:function(a){return a.text}}};var r=new q;return r}),c("select2/options",["./defaults"],function(a){function b(b,c){this.options=b,null!=c&&this.fromElement(c),this.options=a.apply(this.options)}return b.prototype.fromElement=function(a){return null==this.options.multiple&&(this.options.multiple=a.prop("multiple")),this},b.prototype.get=function(a){return this.options[a]},b.prototype.set=function(a,b){this.options[a]=b},b}),c("select2/core",["jquery","./options","./utils","./keys"],function(a,b,c,d){var e=function(a,c){if(null==a.data("select2")){this.$element=a,this.id=this._generateId(a),c=c||{},this.options=new b(c,a),e.__super__.constructor.call(this);var d=this.options.get("dataAdapter");this.data=new d(a,this.options);var f=this.render();this._placeContainer(f);var g=this.options.get("selectionAdapter");this.selection=new g(a,this.options);var h=this.selection.render();this._placeSelection(h);var i=this.options.get("dropdownAdapter");this.dropdown=new i(a,this.options);var j=this.dropdown.render();this._placeDropdown(j);var k=this.options.get("resultsAdapter");this.results=new k(a,this.options,this.data);var l=this.results.render();this._placeResults(l);var m=this;this._bindAdapters(),this._registerDomEvents(),this._registerDataEvents(),this._registerSelectionEvents(),this._registerDropdownEvents(),this._registerResultsEvents(),this._registerEvents(),this.data.current(function(a){m.trigger("selection:update",{data:a})}),a.hide(),this._tabindex=a.attr("tabindex")||0,a.attr("tabindex","-1"),a.data("select2",this)}};return c.Extend(e,c.Observable),e.prototype._generateId=function(a){var b="";return b=null!=a.attr("id")?a.attr("id"):null!=a.attr("name")?a.attr("name")+"-"+c.generateChars(2):c.generateChars(4),b="select2-"+b},e.prototype._placeContainer=function(a){a.insertAfter(this.$element),a.width(this.$element.outerWidth(!1))},e.prototype._placeSelection=function(a){var b=this.$container.find(".selection");b.append(a)},e.prototype._placeDropdown=function(a){this.$dropdown=a;var b=this.$container.find(".dropdown-wrapper");b.append(a)},e.prototype._placeResults=function(a){var b=this.$dropdown.find(".results");b.append(a)},e.prototype._bindAdapters=function(){this.data.bind(this,this.$container),this.selection.bind(this,this.$container),this.dropdown.bind(this,this.$container),this.results.bind(this,this.$container)},e.prototype._registerDomEvents=function(){var a=this;this.$element.on("change.select2",function(){a.data.current(function(b){a.trigger("selection:update",{data:b})})})},e.prototype._registerDataEvents=function(){var a=this;this.data.on("results:message",function(b){a.trigger("results:message",b)})},e.prototype._registerSelectionEvents=function(){var a=this;this.selection.on("open",function(){a.open()}),this.selection.on("close",function(){a.close()}),this.selection.on("toggle",function(){a.toggleDropdown()}),this.selection.on("results:select",function(){a.trigger("results:select")}),this.selection.on("results:previous",function(){a.trigger("results:previous")}),this.selection.on("results:next",function(){a.trigger("results:next")}),this.selection.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.selection.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerDropdownEvents=function(){var a=this;this.dropdown.on("query",function(b){a.trigger("query",b)}),this.dropdown.on("keypress",function(b){a.trigger("keypress",b)})},e.prototype._registerResultsEvents=function(){var a=this;this.results.on("query:append",function(b){a.trigger("query:append",b)}),this.results.on("selected",function(b){a.trigger("select",b),a.close()}),this.results.on("unselected",function(b){a.trigger("unselect",b),a.close()}),this.results.on("results:focus",function(b){a.trigger("results:focus",b)})},e.prototype._registerEvents=function(){var a=this;this.on("open",function(){a.$container.addClass("open")}),this.on("close",function(){a.$container.removeClass("open")}),this.on("query",function(b){this.data.query(b,function(c){a.trigger("results:all",{data:c,query:b})})}),this.on("query:append",function(b){this.data.query(b,function(c){a.trigger("results:append",{data:c,query:b})})}),this.on("keypress",function(b){var c=b.which;a.isOpen()?c===d.ENTER?(a.trigger("results:select"),b.preventDefault()):c===d.UP?(a.trigger("results:previous"),b.preventDefault()):c===d.DOWN?(a.trigger("results:next"),b.preventDefault()):(c===d.ESC||c===d.TAB)&&(a.close(),b.preventDefault()):(c===d.ENTER||c===d.SPACE)&&(a.open(),b.preventDefault())})},e.prototype.toggleDropdown=function(){this.isOpen()?this.close():this.open()},e.prototype.open=function(){this.isOpen()||(this.trigger("query",{}),this.trigger("open"))},e.prototype.close=function(){this.isOpen()&&this.trigger("close")},e.prototype.isOpen=function(){return this.$container.hasClass("open")},e.prototype.destroy=function(){this.$container.remove(),this.$element.off(".select2"),this.$element.attr("tabindex",this._tabindex),this.$element.show(),this.$element.removeData("select2"),this.data.destroy(),this.selection.destroy(),this.dropdown.destroy(),this.results.destroy(),this.data=null,this.selection=null,this.dropdown=null,this.results=null},e.prototype.render=function(){var b=a('<span class="select2 select2-container"><span class="selection"></span><span class="dropdown-wrapper" aria-hidden="true"></span></span>');return this.$container=b,this.$container.addClass("select2-theme-"+this.options.get("theme")),b.data("element",this.$element),b},e}),c("jquery.select2",["jquery","select2/core"],function(a,b){return null==a.fn.select2&&(a.fn.select2=function(c){if(c=c||{},"object"==typeof c)this.each(function(){new b(a(this),c)});else{if("string"!=typeof c)throw new Error("Invalid arguments for Select2: "+c);var d=this.data("select2"),e=Array.prototype.slice.call(arguments,1);d[c](e)}}),b}),b("jquery.select2"),$.fn.select2.amd={define:c,require:b}}();
\ No newline at end of file
diff --git a/docs/examples.html b/docs/examples.html
index 7991e2fe..0f2363fa 100644
--- a/docs/examples.html
+++ b/docs/examples.html
@@ -502,7 +502,9 @@ $.fn.select2.amd.require(
 
   var $language = $(".js-example-language");
 
-  $basicSingle.select2();
+  $basicSingle.select2({
+    theme: "classic"
+  });
   $basicMultiple.select2()
 
   $placeholderSingle.select2({
diff --git a/src/js/select2/core.js b/src/js/select2/core.js
index d94f26d5..ffeadb2c 100644
--- a/src/js/select2/core.js
+++ b/src/js/select2/core.js
@@ -335,7 +335,7 @@ define([
 
   Select2.prototype.render = function () {
     var $container = $(
-      '<span class="select2 select2-container select2-theme-default">' +
+      '<span class="select2 select2-container">' +
         '<span class="selection"></span>' +
         '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
       '</span>'
@@ -343,6 +343,8 @@ define([
 
     this.$container = $container;
 
+    this.$container.addClass('select2-theme-' + this.options.get('theme'));
+
     $container.data('element', this.$element);
 
     return $container;
diff --git a/src/js/select2/defaults.js b/src/js/select2/defaults.js
index 04398f48..0cf632c1 100644
--- a/src/js/select2/defaults.js
+++ b/src/js/select2/defaults.js
@@ -175,6 +175,7 @@ define([
       language: ['select2/i18n/en'],
       matcher: matcher,
       minimumInputLength: 0,
+      theme: 'default',
       templateResult: function (result) {
         return result.text;
       },
diff --git a/src/scss/_dropdown.scss b/src/scss/_dropdown.scss
index fffa8f8c..6717bbcb 100644
--- a/src/scss/_dropdown.scss
+++ b/src/scss/_dropdown.scss
@@ -21,7 +21,6 @@
       padding: 4px;
 
       input {
-        outline: 0;
         padding: 4px;
         width: 100%;
       }
diff --git a/src/scss/core.scss b/src/scss/core.scss
index 6fd18594..8a50ec65 100644
--- a/src/scss/core.scss
+++ b/src/scss/core.scss
@@ -13,100 +13,4 @@
 @import "dropdown";
 
 @import "theme/default/layout";
-
-.s2-container {
-  margin: 0;
-  position: relative;
-  zoom: 1;
-  vertical-align: middle;
-
-  &.s2-active {
-    border: 1px solid #5897fb;
-    border-top: bottom;
-  }
-
-  .s2-single-select {
-    display: block;
-    height: 26px;
-    padding: 0 0 0 8px;
-    overflow: hidden;
-    position: relative;
-
-    border: 1px solid #aaa;
-    white-space: nowrap;
-    line-height: 26px;
-    color: #444;
-    text-decoration: none;
-
-    border-radius: 4px;
-
-    background-clip: padding-box;
-
-    -webkit-touch-callout: none;
-    -webkit-user-select: none;
-    -moz-user-select: none;
-    -ms-user-select: none;
-    user-select: none;
-
-    background-color: #fff;
-    background-image: -webkit-gradient(linear, left bottom, left top, color-stop(0, #eee), color-stop(0.5, #fff));
-    background-image: -webkit-linear-gradient(center bottom, #eee 0%, #fff 50%);
-    background-image: -moz-linear-gradient(center bottom, #eee 0%, #fff 50%);
-    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr = '#ffffff', endColorstr = '#eeeeee', GradientType = 0);
-    background-image: linear-gradient(to top, #eee 0%, #fff 50%);
-
-    .s2-selection {
-      margin-right: 26px;
-      display: block;
-      overflow: hidden;
-
-      white-space: nowrap;
-
-      text-overflow: ellipsis;
-    }
-  }
-
-  .s2-open {
-    .select2-container-active .select2-choice,
-    .select2-container-active .select2-choices {
-      border: 1px solid #5897fb;
-      outline: none;
-
-      -webkit-box-shadow: 0 0 5px rgba(0, 0, 0, .3);
-      box-shadow: 0 0 5px rgba(0, 0, 0, .3);
-    }
-  }
-
-}
-
-.s2-search {
-  input {
-    -webkit-box-sizing: border-box; /* webkit */
-    -moz-box-sizing: border-box; /* firefox */
-    box-sizing: border-box; /* css3 */
-  }
-}
-
-
-.s2-dropdown {
-  width: 100%;
-  margin-top: -1px;
-  position: absolute;
-  z-index: 9999;
-  overflow: scroll;
-
-  background: #fff;
-  color: #000;
-  border: 1px solid #5897fb;
-  border-top: none;
-
-  border-radius: 0 0 4px 4px;
-
-  -webkit-box-shadow: 0 4px 5px rgba(0, 0, 0, .15);
-  box-shadow: 0 4px 5px rgba(0, 0, 0, .15);
-}
-
-
-.s2-hidden {
-  display: none;
-}
+@import "theme/classic/layout";
diff --git a/src/scss/mixins/_gradients.scss b/src/scss/mixins/_gradients.scss
new file mode 100644
index 00000000..bdfc166c
--- /dev/null
+++ b/src/scss/mixins/_gradients.scss
@@ -0,0 +1,13 @@
+// https://github.com/twbs/bootstrap-sass/blob/a416cb86a3ddc6906892b2c0472deea306989fea/vendor/assets/stylesheets/bootstrap/mixins/_gradients.scss
+
+// Vertical gradient, from top to bottom
+//
+// Creates two color stops, start and end, by specifying a color and position for each color stop.
+// Color stops are not available in IE9 and below.
+@mixin gradient-vertical($start-color: #555, $end-color: #333, $start-percent: 0%, $end-percent: 100%) {
+    background-image: -webkit-linear-gradient(top, $start-color $start-percent, $end-color $end-percent);  // Safari 5.1-6, Chrome 10+
+    background-image: -o-linear-gradient(top, $start-color $start-percent, $end-color $end-percent);  // Opera 12
+    background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
+    background-repeat: repeat-x;
+    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{$start-color}', endColorstr='#{$end-color}', GradientType=0); // IE9 and down
+}
diff --git a/src/scss/theme/classic/_defaults.scss b/src/scss/theme/classic/_defaults.scss
new file mode 100644
index 00000000..899baf63
--- /dev/null
+++ b/src/scss/theme/classic/_defaults.scss
@@ -0,0 +1,34 @@
+$remove-color: #888 !default;
+$remove-hover-color: #555 !default;
+$remove-width: 20px !default;
+
+$selection-color: #444 !default;
+
+$border-color: #aaa !default;
+$border-radius: 4px !default;
+
+$focus-border-color: #5897fb !default;
+
+$container-height: 28px !default;
+
+$selection-bg-top-color: white !default;
+$selection-bg-bottom-color: #eee !default;
+
+$container-placeholder-color: #999 !default;
+
+$container-focus-border-color: blue !default;
+
+$selection-opened-bg-top-color: $selection-bg-bottom-color !default;
+$selection-opened-bg-bottom-color: $selection-bg-top-color !default;
+
+$dropdown-z-index: 1 !default;
+
+$dropdown-bg-color: $selection-bg-top-color !default;
+
+$results-max-height: 200px !default;
+$results-nested-padding: 20px !default;
+
+$results-choice-bg-hover-color: #3875d7 !default;
+$results-choice-fg-hover-color: white !default;
+
+$results-choice-fg-unselectable-color: grey !default;
diff --git a/src/scss/theme/classic/layout.scss b/src/scss/theme/classic/layout.scss
new file mode 100644
index 00000000..e5a6be80
--- /dev/null
+++ b/src/scss/theme/classic/layout.scss
@@ -0,0 +1,94 @@
+@import "defaults";
+@import "../../mixins/gradients";
+
+.select2-container.select2-theme-classic {
+  .selection {
+      .single-select {
+          background-color: mix($selection-bg-top-color, $selection-bg-bottom-color);
+
+          border: 1px solid $border-color;
+          border-radius: $border-radius;
+
+          outline: 0;
+
+          @include gradient-vertical($selection-bg-top-color, $selection-bg-bottom-color, 50%, 100%);
+
+          &:focus {
+            border: 1px solid $focus-border-color;
+          }
+
+          .rendered-selection {
+            color: #444;
+            line-height: 28px;
+
+            .placeholder {
+              color: #999;
+            }
+          }
+      }
+  }
+
+  &.open {
+    .selection {
+      .single-select {
+        border: 1px solid $focus-border-color;
+
+        @include gradient-vertical($selection-opened-bg-top-color, $selection-opened-bg-bottom-color, 50%, 100%);
+      }
+
+      .single-select,
+      .multiple-select {
+        border-bottom: none;
+        border-bottom-left-radius: 0;
+        border-bottom-right-radius: 0;
+      }
+    }
+  }
+
+  .dropdown {
+    background-color: $dropdown-bg-color;
+    border-top: none;
+
+    .search {
+      input {
+        border: 1px solid $border-color;
+        outline: 0;
+      }
+    }
+
+    .results {
+      &> .options {
+        max-height: $results-max-height;
+        overflow-y: auto;
+      }
+
+      .options {
+        .option {
+          &[role=group] {
+            padding: 0;
+
+            .group-label {
+              cursor: default;
+              display: block;
+              padding: 6px;
+            }
+          }
+
+          &[aria-disabled=true] {
+            color: $results-choice-fg-unselectable-color;
+          }
+
+          &[aria-selected].highlighted {
+            background-color: $results-choice-bg-hover-color;
+            color: $results-choice-fg-hover-color;
+          }
+        }
+      }
+    }
+  }
+
+  &.open .dropdown {
+    border: 1px solid $focus-border-color;
+    border-top: none;
+  }
+}