# File lib/sup/modes/thread-index-mode.rb, line 270
  def toggle_starred 
    t = cursor_thread or return
    undo = actually_toggle_starred t
    UndoManager.register "toggling thread starred status", undo, lambda { Index.save_thread t }
    update_text_for_line curpos
    cursor_down
    Index.save_thread t
  end