How to read:
is less then 20 (adjustable value) is SILVER (no trend)
>0 and DI delta (DI plus - DI minus) is >0 color LIME (trend up)
ADX>0 and DI delta <0 color RED (trend down)
cross Index ( adx+adx 14 period back)/2 color is BLACK and means start/end trend
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.