In a sketch, you can import a picture (jpg) by Tools > Sketch Tools > Sketch Picture.
The problem I'm having is the low resolution of the jpg.
If my memory serves me, that once upon a time, there was a popup that asked me if I wanted a high resolution or low resolution version of the picture. That popup happened somewhere in the process of importing the picture, probably after I selected the actual jpg file.
In addition to asking me if I wanted a lo res or high res picture, the popup had an option said something like "Don't ever ask me this question again". I checked that box, and I haven't seen that popup since.
Now I want that popup back.
So I then google "solidworks restore default popups"
It tells me how to get any dismissed message back.
Hint: the tip article directs you to Tools > Options > System Options > Advanced
I'm using SW2020 and I don't see advanced, but I do see "Messages/Errors/Warnings". And there in the list, was the question I wanted.