This script plots an histogram calculated this way:
Get the previous ATR sample, calculated in the specified timeframe Get the actual open price of the bar in the specified timeframe minus the actual price in the current timeframe and plots the percent change between the the 2 values
For example, if you select DAY as timeframe for the ATR:
Plots the percent change between: - ATR(daily) from yesterday and - open from today - actual price
Due to Tradingview limitations, only shows the plot if the actual timeframe of the graphic is equal or lower that the ATR selected timeframe
The background changes shows a new ATR sample taking place
I'm testing this for scalping in 5M timeframe with the ATR in 4H