Would it be possible to give us the option to choose the thumbnail from each magazine, even if it’s choose page 2 instead of 1. It’s just some people tend to put their own front page on the magazines and it starts to look messy with a black background and some text.
Glad you love the app. Supporting that is more tricky than it sounds, although it is in our roadmap. For the time being, as a workaround, you can decompress the file (on a computer or using Files app), remove or replace the first file, and then compress the folder again (Panels supports zip, or you can change the extension to .cbz). Then move the compressed file to Panels. Hope that makes sense.