This script shows regular volume bars with two separate moving averages using only bullish and only bearish candles. The moving average uses the last known value of its calculation.
Using the Heikin Ashi function will smooth the colors and moving averages (good for trends):
The crossovers are a good way to see what the dominant direction of a trend is, if you test them on your time frame and instrument they might be good to trade on their own, I have not tested this and the default settings are not tuned for that.
As always, let me know if you like it or found a good way to use it :)
What period of VMA do you recommend?