Thumbnail of Cover Art

I can’t seem to get the thumbnail version of my cover art working.

The cover art itself works fine, but instead of the thumbnail version, it keeps displaying that standard image that inform7 uses.

I’ve got the main file at 960x960, named Cover.jpg.
I’ve got the thumbnail at 120x120, named Small Cover.jpg.

So, can someone please tell me exactly how to do this? Am I supposed to write, “release with thumbnail image” or something?

I’m not sure what you mean when you say ‘works fine’.

Have you checked everything in chapter 23.8 of the docs? That gives the step by step instructions on what command to include in your source to attach the cover art and where to put the cover art files.

How are you checking whether it works? I believe the small cover art is only used by a handful of external programs.