anchor.diff:  }
   .switcherView img {
     width:100%;
  -  height: calc(100% - 30pt);
  +  height:calc(100% - 32pt);
     object-fit: contain;
   }
       '''
  
positive.code:   set animate(bool value) {
      if (!_animate && value) _lastFrameTime = new DateTime.now();
      _animate = value;
    }
  
    String get comparisonHeight {
  
negative.code:     <div *ngIf="!splitView" class="switcherView">
        <img id="firstSwitcherImage" src="{{leftImage}}" *ngIf="leftImageVisible">      
        <img id="secondSwitcherImage" src="{{rightImage}}" *ngIf="rightImageVisible">    
        <table style="width: 100%">
        <tr>
        <td><material-progress [activeProgress]="countdownProgress"></material-progress></td>
        <td style="width: 32pt" ><material-button icon (trigger)="toggleImage()"><glyph icon="compare_arrows"></glyph></material-button></td>
        </tr>
        </table>
      </div>
      <div style="width: 100%; height:100%;" #ruler></div>
      <div *ngIf="splitView" [style.width]="comparisonSplitPosition"
  