Helps to enter and exit profitable trades.
The background color changes after an EMA crossover of lengths 3 and 8 to indicate trend.
The outline of the candle (red or green) indicates if the heikin ashi is an up or down candle. The second consecutive heikin ashi of the same colour changes the bar colour to black or white depending on direction. This helps prevent false positives.
Bollinger bands are used to provide confluence for good entries and exits. Typically want to enter/exit when price touches band or is slightly outside band.
When the RSI is oversold (below 30), the word "low" is printed above the candle. When the RSI is overbought (above 70), the word "high" is printed above the candle.