Current examples that download images from the web require you to write them to storage and then display them. This requires the filesystem to be read-write , a potentially destructive requirement.

Circuitpython io supports BytesIO, but there is no way to display an image that's loaded into a BytesIO object.

bg_bitmap_file = BytesIO(requests.get(url, stream=True).content)
bg_bitmap = displayio.OnDiskBitmap(bg_bitmap_file)
This code doesn't work as is throws an object type error.

I propose a new method displayio.BytesIOBitmap(bg_bitmap_file) that would allow display from a BytesIO object.