This is how it's work :
You need to put your candle on HEIKIN ASHI STYLE (Lower Noise, Clear Detail of Situation) *Important*
Light Blue Zone : Buy Zone (Long)
Blue Zone : Buy Zone Definetly
Dark Blue Zone : Prepare to Sell (Short)
Black Zone : Sell Zone (Short) (Wait for Next Buy Zone)
The Two Black Lines Cross Meaning Last Call Before Move. (Confirmation of Zone & Move)
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.