anchor.diff:                         color black
                      }
                  }
  -               cell {
  +               cell('B') {
                      value 'A'
                      style {
                          border left, {
  
positive.code: file.withOutputStream { out ->
      builder.build(out) {
          sheet('Sample') {
              row {
                 style {
                     background whiteSmoke
                     border top, bottom {
  
negative.code:                }
             }
             row {
                 cell('B') { value 1 }
                 cell 2
                 cell 3
             }
  