anchor.diff:  3+|*Key Prefix:* toc
   
   |font_color
  -|<<colors,Color>>
  +|<<colors,Color>> +
  +(default: _inherit_)
   |toc:
     font_color: #333333
   
   |font_family
  -|<<fonts,Font family name>>
  +|<<fonts,Font family name>> +
  +(default: _inherit_)
   |toc:
     font_family: Noto Serif
   
   |font_size
  -|<<values,Number>>
  +|<<values,Number>> +
  +(default: _inherit_)
   |toc:
     font_size: 9
   
   |font_style
  -|<<font-styles,Font style>>
  +|<<font-styles,Font style>> +
  +// QUESTION why is the default not inherited?
  +(default: normal)
   |toc:
     font_style: bold
   
  
positive.code: 3+|*Key Prefix:* description_list
  
  |term_font_style
  |<<font-styles,Font style>>
  |description_list:
    term_font_style: italic
  
  
negative.code: 3+|*Key Prefix:* toc_dot_leader
  
  |content
  |Quoted string +
  (default: '. ')
  |toc:
    dot_leader:
      content: ". "
  