Hi - I love Okular, been using it for a while.

In Linux Mint, the thumbnails do not use the generic PDF/Okular icon. It shows me a really helpful preview of the document. ie. The icon will be a preview of the first page of the document. In Windows 10, however, I only get generic Okular icons, not the first page of the PDF as the icon. Say I have a bunch of ebooks: In Linux, I can tell what's what at a glance by seeing all the covers, and it is awesome. In Windows 10, I'm looking at a sea of Okular icons and need to read filenames etc.

How do I make the icon preview behave the same in Windows 10 as it does in Linux?

I've been searching for the answer for a long time. Any help would be much appreciated.