green lines indicate uptrend.
red line indicates down trend.
when all lines are green its very good uptrend - you can buy.
when all lines are red its very good downtrend - you can sell.
when few lines are red and few are green its not confirmed buy or sell.
in this situation you may confirm buy or sell with the help of other indicators.
its an easy to use indicator.
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.