It shows how the cpr is developing as the day is progressing.
The colour of the range is red when tc is below bc and green when tc is above bc .
While calculating the value of cpr , the high is the high from starting of the session and low is the low from starting of the session till that specific candle.
This also shows that the trend is developing.
If the colour is red and the range starts widening, it means downtrend has started to develop and
when the colour is green and range starts widening, it means uptrend is developing.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.