Y.App doesn't stick classes onto view containers by default, which seems kinda bonkers to me

extension-view-classer.js

/*jshint browser:true, yui:true */
YUI.add("extension-view-classer", function(Y) {
    "use strict";
    
    var ViewClasser = function() {};
    
    ViewClasser.prototype = {
        initializer : function() {
            this._viewClasserHandle = Y.Do.before(this._addViewClasses, this, "render", this);
        },
        
        destructor : function() {
            this._viewClasserHandle.detach();
        },
        
        _addViewClasses : function() {
            var css = "view " + this.name.toLowerCase() + " " + (this.css || "");
                
            this.get("container").addClass(css);
        }
    };
    
    Y.namespace("GW2.Extensions").ViewClasser = ViewClasser;
    
}, "@VERSION@", {
    requires : [
        "node",
        "event-custom-base"
    ]
});