rm for ... in

sprite.cm

@@ -33,9 +33,7 @@ return function(props) {
     visible: true
   }
 
-  var data = {}
-  for (var k in defaults) data[k] = defaults[k]
-  for (var k in props) data[k] = props[k]
+  var data = object(defaults, props)
   
   // Ensure groups is array
   if (!data.groups) data.groups = []