I can get an image url page if I upload the image to a file in Kirby.
On that page, the image appears on a black background.
By the way, can I make this background look white?
I’m sorry if I asked you such a basic question.
If you open an image in your browser like that, it is no longer part of your website, but just an image opened in your browser. So the background actually depends on your browser settings/browser theme.
It’s the same as if you opened any other random image url in your browser, e.g. https://images.unsplash.com/photo-1624841592352-d1fb436f90bf?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=934&q=80
You can verify this by inspecting the page in your browser dev tools.
Thank you very much for your kind reply. 