I like listening to podcasts but I always create my own album art for each one.
I usually put all the podcasts into a folder for the day and add cover art manually for each one (or sometimes 2 or 3 podcasts).
To add each custom made art image cover obviously I right click Add cover... and navigate to the file.
What would be really great and is my suggestion for a new feature would be to have a control:
"Add random cover from a folder"
A right click on here would allow the user to navigate to a folder of album art images and add a random image from a folder.
Please see attached image which I hope explains where the control might go
Thanks for reading this.