anchor.diff:  
   === Bundled Fonts
   
  -Asciidoctor PDF bundles several fonts that are used in the default theme.
  -You can also use these fonts in your custom theme.
  -These fonts provide more characters than the built-in PDF fonts, but still only a subset of UTF-8.
  +Asciidoctor PDF bundles several fonts that are used by the default theme.
  +You can also use these fonts in your custom theme by simply declaring them.
  +These fonts provide more characters than the built-in PDF fonts, but still only a subset of UTF-8 (to reduce the size of the gem).
   
   The family name of the fonts bundled with Asciidoctor PDF are as follows:
   
  
positive.code: http://mplus-fonts.osdn.jp/mplus-outline-fonts/design/index-en.html#mplus_1p[M+ 1p Fallback]::
  A sans-serif font that provides a very complete set of Unicode glyphs.
  Cannot be styled as italic, bold or bold_italic.
  Useful as a fallback font.
  
  CAUTION: At the time of this writing, you cannot use the bundled fonts if you define your own custom fonts.
  This limitation may be lifted in the future.
  
  === Custom Fonts
  
negative.code: === Font Styles
  
  In most cases, whereever you can specify a custom font family, you can also specify a font style.
  These two settings are combined to locate the font to use.
  
  The following font styles are recognized:
  
  