opt._finfo = finfo;
        if(0===f.compare(currentFinfo, finfo)){
          D.attr(opt, 'selected', true);
        }
      });
    }
  }/*P.stashWidget*/;
  

  /**
     Internal workaround to select the current preview mode
     and fire a change event if the value actually changes
     or if forceEvent is truthy.
  */
  P.selectPreviewMode = function(modeValue, forceEvent){
    const s = this.e.selectPreviewMode;

    const target = this.e.previewTarget;
    D.clearElement(target);
    if('string'===typeof c) D.parseHtml(target,c);
    if(F.pikchr){
      F.pikchr.addSrcView(target.querySelectorAll('svg.pikchr'));
    }
  };
  

  /**
     Callback for use with F.connectPagePreviewers()
  */
  P._postPreview = function(content,callback){
    if(!affirmHasFile()) return this;
    if(!content){
      callback(content);