This indicator is created for user to identify BIG CANDLE "BC" in order to identify momentum in the chart.
Big candle is identify by size of the body candle (body size = |open - close|). The script will compare previous size of 20 candles and will plot "BC" if the body size candles is bigger compared to 20 body candles before.
"BC" in Green color = Bullish Big Candle "BC" in Red color = Bearish Big Candle