protected override void OnRender(IChartControlCanvas chartControlCanvas)
{
      double GetY(double price) { return ChartViewport.GetValueOrThrow().GetYByValue(price); }

      //Actually it is possible only some inheritor will call the method explicitly
      if (ChartControl == null || ChartViewport == null || ChartPanel == null || _atr == null)
          return;

      var firstIndexToDraw = Input.Count - 10;

      if (ChartViewport.ToIndex < firstIndexToDraw)
          return;

      var textColor = Colors.LightGray;
      var levelsColor = Colors.DarkGoldenrod;
      var priceColor = Colors.Aqua;

      var x1 = ChartPanel.Width;
      var x2 = ChartControl.GetValueOrThrow().GetXByBarIndex(Input, firstIndexToDraw);

      var priceMiddle = this.Input.GetLastValue().Close;
      var yMiddle = GetY(priceMiddle);

      // Middle
      chartControlCanvas.DrawLine(new Point(x1, yMiddle), new Point(x2, yMiddle), new Stroke(priceColor, 2));
            chartControlCanvas.DrawText($"Current price: " +
                                        $"{Instrument?.Definition.FormatPrice(priceMiddle, ApplicationSettings.FormatCulture)}", 
                new Point(x1, yMiddle), textColor, HorizontalOrigin.Right,VerticalOrigin.Bottom);


      var distance = _atr.GetLastValue() * Multiplier;

       // Top
      var priceTop = priceMiddle + distance;
      var yTop = GetY(priceTop);
      chartControlCanvas.DrawLine(new Point(x1, yTop), new Point(x2, yTop), new Stroke(levelsColor, 2));
            chartControlCanvas.DrawText($"Channel's top: " +
                                        $"{Instrument?.Definition.FormatPrice(priceTop, ApplicationSettings.FormatCulture)}", 
                new Point(x1, yTop), textColor, HorizontalOrigin.Right,
                VerticalOrigin.Bottom);

      // Bottom
      var priceBottom = priceMiddle - distance;
      var yBottom = GetY(priceBottom);
      chartControlCanvas.DrawLine(new Point(x1, yBottom), new Point(x2, yBottom), new Stroke(levelsColor, 2));
            chartControlCanvas.DrawText($"Channel's bottom: " +
                                        $"{Instrument?.Definition.FormatPrice(priceBottom, ApplicationSettings.FormatCulture)}", 
                new Point(x1, yBottom), textColor, HorizontalOrigin.Right,
                VerticalOrigin.Bottom);
}