title: How to change font color of the title in grouped type UITableView?
body: <p>I have a grouped type table view and it looks pretty cool.</p>
  
  <p>But, if I change the background color of the table to black, the titles becomes unclear.</p>
  
  <p>Is it possible to change the font color and its styles so that I can make it more readable? Should I implement the <code>tableView:viewForHeaderInSection:</code> method?</p>