glimmer_menu_bar.rb

shell {
  menu_bar {
    menu {
      text "&File"
      menu_item {
        text "E&xit"
      }
      menu_item(0) {
        text "&New"
      }
      menu(1) {
        text "&Options"
        menu_item(:radio) {
          text "Option 1"
        }
        menu_item(:separator)
        menu_item(:check) {
          text "Option 3"
        }
      }
    }
    menu {
      text "&History"
      menu {
        text "&Recent"
        menu_item {
          text "File 1"
        }
        menu_item {
          text "File 2"
        }
      }
    }
  }
}.open