Is your feature request related to a problem? Please describe.
Not a problem related. But new request.

Describe the solution you'd like
Now we only can draw

We want to draw this as we want

Describe alternatives you've considered
I have edit the source file 'original_flavor.py' > the function '_candlestick' > manually edit the line width value within 'vline = Line2D(xx HERE xxx)' from '1' to 'what I want'

Additional context
What if we can control the width by ratio or absolute number from any kind of argument style that flexible.
Please.