Wallpaper image background?

[rek]

is it possible to put a background image of your own? such as a hi res scan of a blank sheet of paper?

I'm assuming it doesn't exist because I haven't seen any screenshots of that. but my assumptions are often wrong, so I ask instead.

And from a developers' perspective, what would be the challenges of such a thing in case that feature does not exist?

I am wondering what the effect would be for example there was a blank sheet of printer paper in the background of sketcher and if you zoom in, it zooms in on the paper too.

[M4x]

Are you aware of the Image_Workbench? Have a look here for a real life example:
https://watchguy.co.uk/a-new-era/ (there's a thread at this.forum.too but I can't find.it right now)