Hey Sheldon,
What a great question! I haven’t seen this come up in the past and it’s certainly a cool idea.
I do want to note that it will take a fair amount of custom development to make that happen. While we’re fairly limited in how much we can support that, I’d be happy to at least point you in the right direction, if I can.
The function for grabbing an events featured image is this: tribe_event_featured_image()
You can use that to fetch the image for an event by adding it to the single-event.php template, which is located here:
/wp-content/plugins/the-events-calendar/src/views/month/single-event.php
(It’s worth noting that you can override this template in your theme directory so that your changes do not get lost on future updates. The instructions are here in our Themer’s Guide.)
Once you display the image in the template, you’ll want to use CSS to position the image correctly and display it behind the content. That will take some experimentation and testing, but should be achievable.
Will this help you get started? Please let me know. 🙂
Cheers!
Geoff