anchor.diff:  |svg:
     fallback_font_family: Times-Roman
   |===
  +
   . The fallback font family is only used when the font family in the SVG does not map to a known font name from the font catalog.
   
   [#keys-lead]
  
positive.code: |literal:
    font-style: bold
  |===
  . The border is only used if a border color is specified and the border width is not explicitly set to 0.
  The border only works properly if the literal phrase does not have nested formatting.
  Otherwise, the border will be inherited, producing a less than desirable result.
  
negative.code: |button:
    font-style: normal
  |===
  
  . The border is only used if a border color is specified and the border width is not explicitly set to 0.
  . The border offset is the amount that the background and border swells around the text.
  It does not affect the distance between the formatted phrase and the phrases that surround it.
  