diff --git a/src/wp-admin/css/customize-widgets.css b/src/wp-admin/css/customize-widgets.css
index aaff3761a2..2b9c254823 100644
--- a/src/wp-admin/css/customize-widgets.css
+++ b/src/wp-admin/css/customize-widgets.css
@@ -310,76 +310,76 @@ body.adding-widget #customize-preview {
 	-moz-osx-font-smoothing: grayscale;
 }
 
-/* smiley */
+/* dashicons-smiley */
 #available-widgets [class*="easy"] .widget-title:before { content: "\f328"; top: -4px; }
 
-/* star-filled */
+/* dashicons-star-filled */
 #available-widgets [class*="super"] .widget-title:before,
 #available-widgets [class*="like"] .widget-title:before { content: "\f155"; top: -4px; }
 
-/* wordpress */
+/* dashicons-wordpress */
 #available-widgets [class*="meta"] .widget-title:before { content: "\f120"; }
 
-/* archive-box */
+/* dashicons-archive */
 #available-widgets [class*="archives"] .widget-title:before { content: "\f480"; top: -4px; }
 
-/* category */
+/* dashicons-category */
 #available-widgets [class*="categor"] .widget-title:before { content: "\f318"; top: -4px; }
 
-/* comments */
+/* dashicons-admin-comments */
 #available-widgets [class*="comment"] .widget-title:before,
 #available-widgets [class*="testimonial"] .widget-title:before,
 #available-widgets [class*="chat"] .widget-title:before { content: "\f101"; }
 
-/* post */
+/* dashicons-admin-post */
 #available-widgets [class*="post"] .widget-title:before { content: "\f109"; }
 
-/* admin-page */
+/* dashicons-admin-page */
 #available-widgets [class*="page"] .widget-title:before { content: "\f105"; }
 
-/* text */
+/* dashicons-text */
 #available-widgets [class*="text"] .widget-title:before { content: "\f478"; }
 
-/* links */
+/* dashicons-admin-links */
 #available-widgets [class*="link"] .widget-title:before { content: "\f103"; }
 
-/* search */
+/* dashicons-search */
 #available-widgets [class*="search"] .widget-title:before { content: "\f179"; }
 
-/* menu */
+/* dashicons-menu */
 #available-widgets [class*="menu"] .widget-title:before,
 #available-widgets [class*="nav"] .widget-title:before { content: "\f333"; }
 
-/* tag-cloud */
+/* dashicons-tagcloud */
 #available-widgets [class*="tag"] .widget-title:before { content: "\f479"; }
 
-/* rss */
+/* dashicons-rss */
 #available-widgets [class*="rss"] .widget-title:before { content: "\f303"; top: -6px; }
 
-/* calendar */
+/* dashicons-calendar */
 #available-widgets [class*="event"] .widget-title:before,
 #available-widgets [class*="calendar"] .widget-title:before { content: "\f145"; top: -4px;}
 
-/* format-image */
+/* dashicons-format-image */
 #available-widgets [class*="image"] .widget-title:before,
 #available-widgets [class*="photo"] .widget-title:before,
 #available-widgets [class*="slide"] .widget-title:before,
 #available-widgets [class*="instagram"] .widget-title:before { content: "\f128"; }
 
-/* format-gallery */
+/* dashicons-format-gallery */
 #available-widgets [class*="album"] .widget-title:before,
 #available-widgets [class*="galler"] .widget-title:before { content: "\f161"; }
 
-/* format-video */
+/* dashicons-format-video */
 #available-widgets [class*="video"] .widget-title:before,
 #available-widgets [class*="tube"] .widget-title:before { content: "\f126"; }
 
-/* format-audio */
+/* dashicons-format-audio */
 #available-widgets [class*="music"] .widget-title:before,
 #available-widgets [class*="radio"] .widget-title:before,
 #available-widgets [class*="audio"] .widget-title:before { content: "\f127"; }
 
-/* admin-users */
+/* dashicons-admin-users */
 #available-widgets [class*="login"] .widget-title:before,
 #available-widgets [class*="user"] .widget-title:before,
 #available-widgets [class*="member"] .widget-title:before,
@@ -388,51 +388,51 @@ body.adding-widget #customize-preview {
 #available-widgets [class*="profile"] .widget-title:before,
 #available-widgets [class*="grofile"] .widget-title:before { content: "\f110"; }
 
-/* cart */
+/* dashicons-cart */
 #available-widgets [class*="commerce"] .widget-title:before,
 #available-widgets [class*="shop"] .widget-title:before,
 #available-widgets [class*="cart"] .widget-title:before { content: "\f174"; top: -4px; }
 
-/* shield */
+/* dashicons-shield */
 #available-widgets [class*="secur"] .widget-title:before,
 #available-widgets [class*="firewall"] .widget-title:before { content: "\f332"; }
 
-/* chart-bar */
+/* dashicons-chart-bar */
 #available-widgets [class*="analytic"] .widget-title:before,
 #available-widgets [class*="stat"] .widget-title:before,
 #available-widgets [class*="poll"] .widget-title:before { content: "\f185"; }
 
-/* feedback */
+/* dashicons-feedback */
 #available-widgets [class*="form"] .widget-title:before { content: "\f175"; }
 
-/* email-alt */
+/* dashicons-email-alt */
 #available-widgets [class*="subscribe"] .widget-title:before,
 #available-widgets [class*="news"] .widget-title:before,
 #available-widgets [class*="contact"] .widget-title:before,
 #available-widgets [class*="mail"] .widget-title:before { content: "\f466"; }
 
-/* share */
+/* dashicons-share */
 #available-widgets [class*="share"] .widget-title:before,
 #available-widgets [class*="socia"] .widget-title:before { content: "\f237"; }
 
-/* translation */
+/* dashicons-translation */
 #available-widgets [class*="lang"] .widget-title:before,
 #available-widgets [class*="translat"] .widget-title:before { content: "\f326"; }
 
-/* location-alt */
+/* dashicons-location-alt */
 #available-widgets [class*="locat"] .widget-title:before,
 #available-widgets [class*="map"] .widget-title:before { content: "\f231"; }
 
-/* download */
+/* dashicons-download */
 #available-widgets [class*="download"] .widget-title:before { content: "\f316"; }
 
-/* cloud */
+/* dashicons-cloud */
 #available-widgets [class*="weather"] .widget-title:before { content: "\f176"; top: -4px;}
 
-/* facebook */
+/* dashicons-facebook */
 #available-widgets [class*="facebook"] .widget-title:before { content: "\f304"; }
 
-/* twitter */
+/* dashicons-twitter */
 #available-widgets [class*="tweet"] .widget-title:before,
 #available-widgets [class*="twitter"] .widget-title:before { content: "\f301"; }