-import jalview.ext.treeviewer.ExternalTreeBuilderI;
-import jalview.ext.treeviewer.ExternalTreeI;
-import jalview.ext.treeviewer.ExternalTreeNodeI;
+import jalview.ext.treeviewer.TreeBuilderI;
+import jalview.ext.treeviewer.TreeI;
+import jalview.ext.treeviewer.TreeNodeI;