rem: var _49d; 
add: var _4d1; 
context: dojo.html.getBackgroundColor=function(node){node=dojo.byId(node);var _49d;do{_49d=dojo.html.getStyle(node,"background-color");if(_49d.toLowerCase()=="rgba(0, 0, 0, 0)"){_49d="transparent";}if(node==document.getElementsByTagName("body")[0]){node=null;break;}node=node.parentNode;}while(node&&dojo.lang.inArray(["transparent",""],_49d));if(_49d=="transparent"){_49d=[255,255,255,0];}else{_49d=dojo.gfx.color.extractRGB(_49d);}return _49d;};
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