IMPR: RedirectorPage open in new window

_config/base-extensions.yml

@@ -58,3 +58,7 @@ Page:
     - A2nt\CMSNiceties\Models\TeamMember
   extensions:
     - DNADesign\Elemental\Extensions\ElementalPageExtension
+
+SilverStripe\CMS\Model\RedirectorPage:
+  extensions:
+    - A2nt\CMSNiceties\Extensions\RedirectorPageEx

templates/Includes/NavItem_link.ss

@@ -6,12 +6,12 @@
         $ExtraClass
         {$LinkClass}
         <% if $RedirectionType = 'External' || $ExternalURL || $OpenInNewWindow %>
-            external
+            legacy
         <% end_if %>
         <% if $isCurrent || $isSection %>active<% end_if %>
         <% if $isSection %>section<% end_if %>
     "
-    <% if $RedirectionType = 'External' || $OpenInNewWindow %>
+    <% if $OpenInNewWindow %>
         rel="noreferrer"
         target="_blank"
     <% end_if %>