|
Conversion to azw3 in calibre adds metadata that allows the "Publisher font" option to appear in the list of fonts. It does this even if the book contains no embedded fonts. That metadata allows Publisher font as an option but does not force it to be selected.
My best guess is that your default theme is set to use Publisher font and that what you believe to be the default is actually only used for books that do not support Publisher Fonts. You should hopefully be able to solve this by modifying your default theme.
|