code: function _createHighLighter() {
  			var highLighter = document.createElement("div");
  
  			highLighter.style.cssText = "box-sizing: border-box;border:1px solid blue;background: rgba(20, 20, 200, 0.4);position: absolute";
  
  			var highLighterWrapper = document.createElement("div");
  
  			highLighterWrapper.id = "ui5-highlighter";
  			highLighterWrapper.style.cssText = "position: fixed;top:0;right:0;bottom:0;left:0;z-index: 1000;overflow: hidden;";
  			highLighterWrapper.appendChild(highLighter);
  
  			document.body.appendChild(highLighterWrapper);
  
  			// Save reference for later usage
  			_highLighter = document.getElementById("ui5-highlighter");
  
  			// Add event handler
  			_highLighter.onmouseover = _hideHighLighter;
  		}
docs: Create DOM element for visual highlighting.
  @private