Recommend color be set the way it was in 2.2.1.


Code:
 
        getColor : function(attr, defaultValue, prefix){
            var v = this.getStyle(attr),
                //color = prefix || '#',
                color = typeof prefix == "undefined" ? "#" : prefix,
                h;
 
            if(!v || /transparent|inherit/.test(v)){
                return defaultValue;
            }
            if(/^r/.test(v)){
                Ext.each(v.slice(4, v.length -1).split(','), function(s){
                    h = parseInt(s, 10);
                    color += (h < 16 ? '0' : '') + h.toString(16); 
                });
            }else{
                v = v.replace('#', '');
                color += v.length == 3 ? v.replace(/^(\w)(\w)(\w)$/, '$1$1$2$2$3$3') : v;
            }
            return(color.length > 5 ? color.toLowerCase() : defaultValue);
        },