Adds accordion/header coupling

src/definitions/modules/accordion.less

@@ -73,13 +73,17 @@
   height: @iconHeight;
   margin: @iconMargin;
   padding: @iconPadding;
+  font-size: @iconFontSize;
   transition: @iconTransition;
   vertical-align: @iconVerticalAlign;
   transform: @iconTransform;
 }
 
+/*--------------
+    Coupling
+---------------*/
 
-/* Coupling with accordion */
+/* Menu */
 .ui.accordion.menu .item .title {
   display: block;
   padding: @menuTitlePadding;
@@ -90,6 +94,12 @@
   transform: @menuIconTransform;
 }
 
+/* Header */
+.ui.accordion .ui.header .dropdown.icon {
+  font-size: @iconFontSize;
+  margin: @iconMargin;
+}
+
 /*******************************
             States
 *******************************/

src/themes/default/modules/accordion.variables

@@ -13,6 +13,7 @@
 
 /* Icon */
 @iconOpacity: 0.75;
+@iconFontSize: 1em;
 @iconFloat: none;
 @iconWidth: 1.25em;
 @iconHeight: 1em;