Why sometimes the candle color is different from volume bar color

why sometimes the candle color is different from volume bar color? is it a sign of smart money entry?

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Due to changes in colour selection criteria, the colour of volume bars may differ from that of a candle chart. The following are the colour choosing criteria: It is calculated using the opening and closing prices of a stock over a certain time period. If the open price is more than the close price, the candle will be red.