UMG Fonts Material

Is there some rules on how to create the material that will be used as fonts?

Like it must be opaque and default lit, or other rules?<br>Because I just create some material using unlit shading model and translucent blend mode, the text in that widget does not show at all. I tried opaque and default lit, and it still does not show.

So what are the rules in creating materials for fonts?