Hello, so I finally got around to giving this a shot (life really gets in the way of hobbies, doesn't it). But, I'm having issues on my Era Color with this, unfortunately. With your helpful KOR_cover_sync utility, I put it in the applications folder on my device, then when I launched it on the device, it seemingly immediately opened up the Logo settings page. But when I opened each of the Boot and Power-off options, there is no option there for "koreader_cover" as you specified.
I've also tried using your SleepScreen.pbi from that other thread, and while I can install it, and select "SetSleep" as the option for Boot Logo and/or Power-off Logo, it does not show up as an option when I try to tap and hold on a book and try to "Open with" a different app. The only things that show up there are koreader and the built-in app.
I also tried doing the symlinks manually myself, using the terminal from the bundled package from Vlasovsoft, but that terminal lacks the permissions to do the symlinks. (And I was going to try using pbterm but I see in the latest comment from
this thread that it seemingly doesn't work on the Era Color. I wonder if there's something new in the fimrware/OS for the Era Color specifically that is messing with 3rd party applications running correctly? :/
Any ideas? It's ok if not, I know this is relatively a minor thing.