Jack, could you see if you can install custom font and adjust margin via editing reader.pref
https://wiki.mobileread.com/wiki/Kind..._Change_Margin
https://www.mobileread.com/forums/showthread.php?t=99355
Much obliged.
Is the reading progress bar still there? Hideable?
Ps: I can't see any screen improvement from your screenshots, but your eyes know better. I hope it's not some fluke. These units do vary a little.
Man I wish they hadn't dropped audio capability.