I've decided to add Vella covers to my designs. I've just begun so this is my first example, I'm going to be adding more as I make them.

The 'cover' displays like an icon, it's a circle image with no text

If you haven't heard of Vella it's a brand new service offered by Amazon Kindle, they're serialized stories the author releases 1 episode at a time. It's similar to Wattpad's coin program. Readers purchase tokens to unlock chapter. Unfortunately for the moment it will only be available either online or through the ios app, android users are out of luck (as usual). It launched in in July of 2021.