The concept comes from "TTM Squeeze", this indicator visualizes the squeeze on the price movement.
Yellow band overlay on the candles shows that entered a squeeze on with low volatility, market preparing itself for an large move (up or down). Dots of OBV change every bar, green means potential up, red is the opposite.
Prepare a breakout order with the direction of OBV. If potential up, the strategy is a breakout order above the squeezed Bollinger Band and the stop loss is below the Bollinger Band. It's a pity that it cannot write breakout order strategy in Tradingview.
My experience that use CVD instead of OBV will have better performance, but it needs the historical evolution of the order book.