title: Button text color in Extjs 4
body: <p>I'm using <a href="http://docs.sencha.com/extjs/4.2.0/" rel="noreferrer">Exjts 4</a> and i want to change the button text color. Here is my code:</p>
  
  <pre><code>{
       xtype: 'button',
       text: 'My Button',
       style:{
           color: 'red'
       }  
  }  
  </code></pre>