Generally speaking a good signal is to enter a long position when the indicator is under the midline and is starting to go up (or when the line is green) and to exit the position when the indicator goes over the midline. I have included strong buy and sell signals in addition to normal ones so darker colors mean strong signals and lighter colors mean normal signals.
Let me know if there are any other indicators you would like me to publish!
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.