Latest update to the volume flow indicator. It calculates volume fraction up and down based on candle shape: body counts twice one way, wicks count both ways. Total volume (positive + negative) is the regular volume. Additionally, I added breakout detection, oscillator, colored candles for easy trend following, reversal warnings, high and low volume alarms. Every aspect uses volume for calculations.
Maybe this is more sensefull for lower timeframes but, for Occam's razor, I would say that, for green candles, the natural movement will be open -> low -> high -> close, because it is the shortest path to traverse the candle, and for bear candles, open -> high -> low -> close.
So for green candles, your fraction up will be the full price range, and your fraction down, the wicks.
The complete price_path will be then 2*wicks + body, and for green candles: