Settings > System > Power Saving - everything set to off
Settings > Interface > Screensaver - I have my Screensaver mode set to 'Dim' and Wait time to 30min (you can make it more, or less, or disable the screensaver entirely
Changing skins might solve your issue with the album art being smaller in the 'Now Playing' screen - to me it looks like it's only 10 or 15% smaller, which is fine with me!
Yeah; all the power saving settings were already off. And the disappearing "Now Playing" seems to be independent of any screensaver settings (mine was set to "dim," too, but after 5 minutes r/t 5 seconds).
Small problems, though. "Minimizing" or "sleeping" on Power Off looks like it'll do the trick for my other issue. Sounds like Homer might have a solution for the first one. Thanks, all of you.