EMA's are a powerfull tool to detect trends on all timeframes.
You can copy this script and modify it, if you want to use a differen selection of EMA's or colours.
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.