Basically it prints the HIGH and LOW from previous day into the current day. This forms like a channel.
It's useful to visually detect when the price cross over the yesterday's high, or close under yesterday's low.
You can activate/deactivate colors as input parameter:
- Price above a previous high: fills green.
- Price below a previous low: fills red.
- Price inside previous low/high: fills blue.
Hope this helps to you too.
This only works for intraday resolutions only (less than 1D)
More to come: I'm working to include pre-market low/high for the current trading day.