The strategy involves Price gapping up, look for a Close below the 1st 5m candle Low; else look for a Close above the 1st 5m candle High. On a break of , take the trade in the opposite direction of the gap, hence the Reversal. Not my own strat, credit to T3 Newsbeat, publicly posted on YouTube.
The Standard in the Pine 4 user manual, was the base source code, and leaving it here will allow me to remove the PP indicator I was using.
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.