title: How to I change font color in DialogTitle and DialogContent in Material UI in react.js
body: <p>How to I change font/text color in <strong>DialogTitle</strong> and <strong>DialogContent</strong> in Material UI in react.js</p>
  
  <p>Changing background color for <strong>Dialog</strong> works but trying to change font color for Dialog and DialogContent doesn't work.. </p>
  
  <pre><code>&lt;Dialog
      open={this.state.open}
      aria-labelledby="alert-dialog-title"
      aria-describedby="alert-dialog-description"
      PaperProps={{
         style: {
             backgroundColor: "#fff",
         },
      }}
      &gt;
  
      &lt;DialogTitle id="alert-dialog-title"&gt;
           "Use Google's location service?"
      &lt;/DialogTitle&gt;
  
      &lt;DialogContent&gt;
           &lt;DialogContentText id="alert-dialog-description"&gt;
                Hello 
           &lt;/DialogContentText&gt;
      &lt;/DialogContent&gt;
  
      &lt;DialogActions&gt;
           &lt;Button onClick={this.handleClose} color="primary"&gt;
                  OK
           &lt;/Button&gt;
      &lt;/DialogActions&gt;
  &lt;/Dialog&gt;
  </code></pre>