Maximize media in Minimal Theme Settings does not work in Reading View

What I’m trying to do

I’m using The Minimal Theme and have disabled the “Maximize media” choice in the settings:

however, this does not work in reading mode but in live preview mode:

In live preview mode.

In reading mode

By the way, everything seems ok when I exported the file to PDF:

I’m not sure where does this stuff come from, so does anyone have the same problem?? Thanks a lot!

Well, solution comes out just after my post. You should disable the Image grids features of The Minimal Theme Settings:

Because this function will recognize every group of picture(s) as a sequence of pics to display so it will automatically resize it to fit the screen width.