In above fiddle there is functionality to click and drag to get price difference between two point along with that rectangle is drawn over chart. But I want behaviour as per below website where color only get fill in area.
I have successfully modified the code for this but It’s laggy Because, I am updating series and creating zones to change fillcolor between two point. Is there any otherway to do it ? I want exact click and drag behaviour as it is only website mentioned above please help