zone is green and one is red. When the histogram is grey, no signals is available at that time.
The indicator has an option to show the current trend of an (ascending or descending curve). When the trend is up, green dots are plotted on the zero line. When the trend is down, the dots are coloured in red.
Greetings, success with your trade!!!
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.