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.
A simple script that I made that draws lines between the high and low . The color of the line define if the is higher or lower than the previous . The main thing to tune is the look back vs look ahead, which are the same params used by the tradingview indicator. There are several other params you can tweaks to get the look you want.