DPI metadata of PNG export should change with scale or be adjustable

I export a figure as a png using write_image:

  fig.update_layout(width=300).write_image("test_1.png", scale=1)

Opening this image in another program, the width of the image is 3.125 inches corresponding to a DPI of 96.

If I instead export an image with a different scale, e.g. 2
fig.write_image("test_2.png", scale=2)
I get a png file with a scaled pixel width (e.g. 600).
But opening the image in another program, the width in inches is also doubled to 6.25.

The ideal behavior IMO would be that the width of the image in inches is unaffected by the scale parameter or having a dpi keyword argument that sets the DPI metadata directly.
A workaround (which others might find useful) is to use Pillow to fix the DPI metadata

  from PIL import Image
  scale = 2
  Image.open("test_2.png").save("test_2_fixed.png", dpi=(96 * scale, 96 * scale))

such that the image defaults to the same size in inches in other programs independent of the scale.

Parti dal percorso di esportazione Python write_image e confronta i metadati PNG prodotti con scale=1 e scale=2. Verifica le dimensioni fisiche risultanti in un altro programma per immagini; il lavoro è completato quando il ridimensionamento dei pixel non modifica più le dimensioni fisiche, oppure quando un’opzione dpi fornisce il controllo richiesto sui metadati.