[EricTyson]

Originally Posted by cellaris

It is only possible to view the book cover when the device is switched off, but not in sleep mode.

https://github.com/koreader/koreader/wiki/Coverimage

Sorry for my imprecision. I was actually referring to power off mode. I’ve set the logo option in the PB settings to last opened books cover. Though when shutting down I still get the default logo. (Same for booting). Is there some setting I am missing in koreader itself?