Currently, thumbnails get a background with text. That's great. However if no such background exists, Dispatch uses the Poster and inserts text to the right.

I would like to suggest that if no background with text exists, just use the normal background then, for a couple of reasons:

Normal background usually exists, while one with text sometimes does not. The difference in amount is pretty substantial.

As it is currently, the fallback approach doesn't look very good and is frankly jarring and distracting. The current fallback could be used in case there is not a single background available (very rare).

I understand that the background with text is chosen to be able to see the title of the movie, and that is a nice touch, however the title is already shown much bigger up top, via the logo. And there is already a much nicer looking fallback method for that if no logo exists. So, at least in my opinion, the text in the background is nice but not strictly needed.

As such, I really think that the visual upgrade that would come from falling back to the regular background would far outweigh the lack of text in the thumbnail.

This could be a choice in the settings as well, since it's about readability vs aesthetics.