Covering Shadow Candle Pattern

This indicator shows 3 types of objects on chart:
1. downward red triangle above a candle: 3 green candles followed by a fourth red candle of which the low price is lower than the low of the 3 previous green candles, this is usually the sign of reversal from upward movement to a downward one.
2. 1. upward green triangle below a candle: 3 red candles followed by a fourth green candle of which the high price is higher than the high of the 3 previous red candles, this is usually the sign of reversal from downward movement to a upward one.
3. boxes: these boxes are drawn when the patterns of cases 1 and 2 fails to perform as expected which means we have some important areas at that level so it can be a resistance or support zone .