Embedded image not parsed in file properties (version 1.4.1)

wikilinks and images aren’t parsed in yaml (wikilinks might be clicable now but as far I know you don’t get an embedded preview of them), and the cover/banner image functionality was provided by custom css or plugins/themes not by vanilla Obsidian, for example here

(but I might missed something)

On my Obsidian

cover:: ![[example_image.png|200]]

just display image, the same way as

 ![[example_image.png|200]]

I would say what you requesting is a new feature, not a bug, but devs or others might comment on it (there is no property type “image” that will be be rendered as I read in the release notes)