Version 5.0.0 beta 3

applications/core/modules/admin/developer/themeeditor.php

@@ -131,7 +131,7 @@ class themeeditor extends Controller
 				'link' => $this->url->setQueryString( array( 'do' => 'categoryForm', 'parent' => $category->id ) )
 			];
 		}
-		elseif( $category->hasSettings() or $category->hasColors() or !$category->hasContents() )
+		if( $category->hasSettings() or $category->hasColors() or !$category->hasContents() )
 		{
 			$buttons['add'] = array(
 				'icon'	=> 'plus-circle',