How do I add a background image to an episode?

This exists from within the web client. But if I try to set it from withing python, it tells me that doesn’t exist.

metadata.seasons[s].episodes[e].art[‘something here’]

In contrast, for a movie you just set .art['big picture url] to Proxy(thumbnail), and the background image changes.

The only image I can find for episodes is thumb, and this is merely the episode’s poster, not the background. What’s the name of the property I need to use?

PlexPlug-inFramework.pdf [765.6K] can be downloaded there and contain the metadata structures:

Simplified table i made:
https://github.com/ZeroQI/Hama.bundle/blob/master/Metadata.md

in short, ep title, summary screenshot, producers. no ep fanart

Thanks. I gave up and used the pictures for the thumbnails anyway, but I appreciate the confirmation.