anchor.diff:  extends ./xml.jade
  -include ../mixins/attrTags.jade
  +include ./mixins/attrTags.jade
   
   mixin valTag(tag, val)
     - var tagMap = {size: 'sz'}
  
positive.code:             applyNumberFormat = numberFormat && 1 || void 0,
              borderId = borderId,
              fillId =  fillId,
              fontId = locals.fontRefs[style.font],
              numFmtId = numberFormat,
              xfId=0
            )
  
negative.code:             gradientFill&attributes()
      borders(count=borders.length)
        each border, r in borders
          if !border || Object.keys(border).length === 1
            border/
          else
            border
  