editor

app/code/Magepow/Sizechart/Block/Adminhtml/Sizechart/Edit/Tab/Main.php

@@ -113,8 +113,9 @@ class Main extends Generic implements TabInterface
             [
                 'name' => 'sizechart_info',
                 'label' => __('Size Chart Information'),
-                'required' => true,
-                'config' => $wysiwygConfig
+                'wysiwyg' => true,
+                'config' => $this->_wysiwygConfig->getConfig(),
+                'required' => true
             ]
         );