The indicator isn't redrawn (the last candle can be redrawn because it still changes).
NOT indicator shows a bottom of the market or top of the market!!! The indicator shows what there will be a color of the following candle.
The index up under the current candle means that the following candle will be growing (there will be a green candle). And vice versa. The index down under the current candle means that the following candle will be falling (there will be a red candle). The indicator shows only on one following candle. It is not the trend indicator!