Note
The mod Tinker provides a better and more refined implementation of this same idea:
This mod will be kept as is, in case you really prefer this one.
Reference Image
Adds a button to the Edit tab of the editor to anchor a reference image to a selected object.
This is useful for tracing art, for example.
No, this will not generate the image as objects.
Thanks to alkatreize for the button texture, and mels for the idea.