     for panel, i in @panels[anchor]
 
       # If it's an odd-numbered panel, reverse the angle.
-      if i % 2 isnt 0 and !options.twist
+      if i % 2 isnt 0 and not options.twist
         deg = -angle
       else
         deg = angle

          @shaders[anchor].right[i] = panel.getElementsByClassName('oridomi-shader-right')[0]

        @panels[anchor][i] = panel

        unless i is 0
          @panels[anchor][i - 1].appendChild panel

      @stages[anchor].appendChild @panels[anchor][0]


    @enableTouch() if @settings.touchEnabled

    # Append each stage to the target element.
    @stageEl.appendChild @stages[anchor] for anchor in @anchors

    # Show the target if applicable.
    if @settings.showOnStart
