I need a pine script indicator. Please red description for details

Hello guys, I need a pinescript indicator that will compare 2 charts. In this case, it's the NASDAQ(NQ) and the E-Mini(ES). These 2 pairs are highly correlated and most of the time print the same color candles. But sometimes one chart will print a bullish candle while the other prints a bearish candle. I would like an indicator that will catch those moments. For example if NQ closes with  a bullish candle and at the same time ES closes with a bearish candle , I would like the indicator to highlight both candles on both charts. I would also like to have alerts when these incidents happen. Thanks