Shadow indicator.
Displays the size of the candle shadows, in points, as a histogram. It works in two modes, at the user’s choice.

Description of the indicator settings

• Mode – indicator operation modes, two modes: the first one is height-the mode of displaying the upper and lower shadows of candlesticks; the second one is difference-the mode
  displays the difference in candle shadows, the difference between the upper and lower shadow of the candle.