The supertrend indicator is plotted on either above or below the closing price to signal a buy or sell. The indicator changes colour, based on whether or not you should be buying. If the super-trend indicator moves below the closing price, the indicator turns green, and it signals an entry point or points to buy.
The supertrend indicator is calculated by using the average true range to offset the indicator from the average price. When the price touches the supertrend line it turns over to the other direction.
It is possible to use DRAW_FILLING by “Show_Filling” input.