--- /dev/null
+<?php
+
+namespace OOUI;
+
+class BlankTheme extends Theme {
+
+ /* Methods */
+
+ public function getElementClasses( Element $element ) {
+ // Parent method
+ $classes = parent::getElementClasses( $element );
+
+ // Add classes to $classes['on'] or $classes['off']
+
+ return $classes;
+ }
+}