You can use this script to setup alerts on Heikin-Ashi bar color change. You have to apply this script to usual candles and not Heikin-Ashi!!! Background color indicates HA bar color. On change you'll see green/red arrows and alert will be fired. Also you can find in the code calculations of all HA OHLC values.
Ver3.0 - EMA14 and EMA50 Cross detection - HA 1st profit taking - Overshoot detection - Candle shape and Wick analysis
When apply a strategy to Heikin Ashi Candle chart (HA candle), the strategy will use the open/close/high/low values of the Heikin Ashi candle to calculate the Profit and Loss, hence also affecting the Percent Profitable, Profit Factor, etc., often resulting a unrealistic high Percent Profitable and Profit Factor, which is misleading. But if you want to use the HA...