I'm trying to change the background color using this code:

```
  data.getItemMetadata = function (index)
  {
       if (index === 5)
       {
           return  {cssClasses: "Unverified"};
       }      
   }

```

It works perfect as long as the index is even. but with odd indexes it has no effect on the background color (it has effect on the font style). I suspect it has something to do with the zebra effect? (I don't know how to disable that)

Thanks.