Twitter login screen redesign

Ok ... I started using Twitter login in my application and I noticed that it is quite easy to implement, but there are few teachers about it. I noticed that the default login page looks like this:

And I don't really like the way it looks. I did a little research and I found that the Vine app created its own login screen design like this one:

My question is, how can I create my own LogIn screen design, but as a steel, I would use the Twitter login api.?