In order to create a world-space emissive UI, I have to create an Emissive Material for every texture I use in my Widgets?

I have a UI that I’m putting in world space. I want it to be emissive(unlit). The only thing that I’ve discovered is that one can replace the “images” with materials and that requires to create a material for every image that I have in my UI. Is this the case?

To answer my own question. It would be appear to be “No” as UI interfaces appear to be unlit/emissive. That said, this brings up another problem which is how to have lit UMG 3D widgets?