In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
Simple code for change in Barcolor if the range ( high-low ) is bigger than the last 5 candles.
Want to use this script on a chart?