This script plots the volume in terms of the underlying base (e.g. USD or btc) not number of coins traded. It plots volume*mid price.
In addition, the volume color density depends on the candle body divided to high-low. Very green for long up candle body, grey means short candle body compared to high-low, very red for long down candle body. It may provide some indications of the strength of bulls versus bears.
In addition, the volume color density depends on the candle body divided to high-low. Very green for long up candle body, grey means short candle body compared to high-low, very red for long down candle body. It may provide some indications of the strength of bulls versus bears.