thx.js

(function(){
	var original_routes = wp.themes.routes;
	wp.themes.routes = original_routes.extend({
		initialize: function() {
			this.route( 'theme/:directory/:slug', 'wpcomtheme', function( directory, slug ) {
				wp.themes.Run.view.view.expand( directory + '/' + slug );
			});

			return original_routes.prototype.initialize.apply( this, arguments );
		}
	});
}(jQuery));