anchor.diff:  |heading:
     margin-bottom: 9.6
   
  -3+|[#key-prefix-heading-level]*Key Prefix:* <<key-prefix-heading-level,heading-h<n> >>^[1]^
  +3+|[#key-prefix-heading-level]*Key Prefix:* <<key-prefix-heading-level,heading-h<n>{zwsp}>>^[1]^
   
   |align
   |<<text-alignments,Text alignment>> +
  
positive.code: |===
  |Key |Value Type |Example
  
  3+|[#key-prefix-role]*Key Prefix:* <<key-prefix-role,role-<name> >>
  
  |font-color
  |<<colors,Color>> +
  
negative.code: |===
  |Key |Value Type |Example
  
  3+|[#key-prefix-ulist-marker-type]*Key Prefix:* <<key-prefix-ulist-marker-type,ulist-marker-<type>{zwsp}>>^[1]^
  
  |content
  |<<quoted-string,Quoted string>>
  