Reading Menu at the bottom (Free Flow Documents)
The menu includes Contents, Progress, Format, Contrast,
and Split View and supports free-flow formats such as
EPUB\TXT\MOBI\AZW3
V2 Engine
Some
free-flow
formats
such
as
ePub\Mobi\azw3\txt\word\jeb\html use V2 Engine by
default. You can go to reading Settings / Other settings to
change to NeoReader.
V2 Engine supports the original layout of the document,
including font, line spacing, margin, graphic typesetting,
indentation, etc. When being switched to V2 Engine, the
document will be closed automatically. Next time when you
open the document again, V2 Engine will be used. If you
want to switch to NeoReader, you can disable V2 Engine
and reopen the document.