anchor.diff:            li .a-fzb-normal                 (1.00/1.50)
             li .a-fzb-milli , .a-fzb-dodrans (0.75/2.00)
             li .a-fzb-micro , .a-fzb-semi    (0.50/3.00)
  -      section
  +      section#headings-paragraphs
           h2 Headings and Paragraphs
           figure
             h1 Heading 1
  
positive.code:             , code_dfn    : 'fadeout(@apertureblack, 20%)'
              , code_hexa   : 'rgba(#0d0800, 0.8)'
              , bg_class    : 'a-bc-shadeheavy'
              , box_color   : scheme.aperturewhite
              }
            , tintheavy : {
                name        : 'Tint Heavy'
              , code_dfn    : 'fadeout(@aperturewhite, 20%)'
              , code_hexa   : 'rgba(#f2f7ff, 0.8)'
              , bg_class    : 'a-bc-tintheavy'
              , box_color   : scheme.apertureblack
              , is_dark     : true
              }
            }
  
negative.code:             , code_dfn    : 'fadeout(@apertureblack, 80%)'
              , code_hexa   : 'rgba(#0d0800, 0.2)'
              , bg_class    : 'a-bc-shadelight'
              , box_color   : color_scheme.aperturewhite
              }
            , tintlight : {
                name        : 'Tint Light'
              , code_dfn    : 'fadeout(@aperturewhite, 80%)'
              , code_hexa   : 'rgba(#f2f7ff, 0.2)'
              , bg_class    : 'a-bc-tintlight'
              , box_color   : color_scheme.apertureblack
              , is_dark     : true
              }
            , shadeheavy : {
  