I looked extensively for an Opera widget and couldn't find one. The software.informer link doesn't seem to have anything relevant to what I'm looking for, either.
What I want this for, is for making image "previews" of web pages I create. I need a way of saving the whole page in my browser as an image file.
I can use Firefox, and I do have the Screengrab add-on for FF installed. But I'd really like the same feature to work in Opera. I don't see any reason why it can't be added in a future release.