title: unable to change color using dropdown in angular js
body: <p>Here is the <a href="http://plnkr.co/edit/LeKmOgNkM2c0CyjB2U7z?p=preview" rel="nofollow">plunker</a> i am working on.now the problem is i am able to change color in exampple 1 but unable to change color in example 2.
  <br/>
  Thanks in Advance.</p>