Outputto artist image

In websources there is a "outputto "Coverurl", what is the outputto for the artist image?

Edit:

This is not possible to address within the Web Sources Framework. You'd need to import the cover and change the type afterwards.

Too bad, maybe in a future update?
Also have a websource that fetches the image author(artist), instead of changing the name and folder by hand is it possible to define the name (instead folder.jpg) and path for this new image?

Audible.com#Authors images.src (2.1 KB)

You define a cover file name in Tools>Options>Tag sources.