anchor.diff:                          :cursor "pointer"
                           :font-weight "bold"))
                   (if (@ cell-data :is-focused)
  -                    (:span ((animation :keyframe ("0%" :background "rgba(141, 110, 99, 0)")
  -                                       :keyframe ("100%" :background "rgba(141, 110, 99, 1)")
  +                    (:span ((animation :keyframe ("0%" :background "rgba(114, 145,156, 0)")
  +                                       :keyframe ("100%" :background "rgba(114, 145, 156, 1)")
                                          :direction "alternate"
  -                                       :delay "0.5s"
  +                                       :delay "0.3s"
                                          :duration "0.5s"
                                          :iteration-count "infinite"))
  -                           (@ cell-data :digit))
  -                    (:span () (@ cell-data :digit)))))))
  +                           (if (= (@ cell-data :digit) 0)
  +                               "_"
  +                               (@ cell-data :digit)))
  +                    (:span () (unless (= (@ cell-data :digit) 0)
  +                                (@ cell-data :digit))))))))
   
   
   
  
positive.code:                       :duration "0.5s"
                        :iteration-count "1"
                        :timeing-function "ease-in")
             (style :height (if (@ cell-data :is-focused)
                                (* side 1.05)
                                side)
                    :width (if (@ cell-data :is-focused)
                               (* side 1.05)
                               side)
                    :margin-left 0
                    :margin-right 0
                    :margin-top 0
  
negative.code:   :uri "/sudoku"
    :port 12800
    :includes ("https://cdnjs.cloudflare.com/ajax/libs/materialize/0.96.1/css/materialize.min.css"
               "https://cdnjs.cloudflare.com/ajax/libs/materialize/0.96.1/js/materialize.min.js"
               "https://cdnjs.cloudflare.com/ajax/libs/keymaster/1.6.1/keymaster.min.js")
    :widget (:sudoku-board ((cell-side 50)
                            (cell-margin 3)
                            (group-margin 4))))
  