Code commentary and an introduction to Inside Bars are available for this post on the Backtest-Rookies (.com) website.
Note: If you are interested in custom development services, please check out our services page on the Backtest-Rookies site.
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.