Unable to prevent plot from initial display

Hi,

I am trying to create a plot object which will later be used in a report. I am able to create the plot and store as object in a variable:

`plot = mpf.plot(data.iloc[::5, :], type='line', volume=True, figratio=(15, 7), style='binance', title=ticker, closefig=True, returnfig=True)[0]`

However, the plot shows on my windows screen initially as a small box, then the chart, then closes immediately. Because I am running the code in a loop, many windows appear and eventually errors out from memory consumption, plus it is a bit cumbersome to have the windows appear in the first place.

Thanks for any help! :)

Start by reproducing the reported mpf.plot call with data.iloc[::5, :], volume=True, closefig=True, and returnfig=True in a loop on Windows. Inspect how these options interact with the initial display and confirm that creating plots for a report no longer opens transient windows or exhausts memory.

Written by the indexing model from the issue text.