title: Why does the default background of the uivew is black in IB xcode?
body: <p>When i set the <strong>default</strong>  background for the view (the view is used as a header for the table) in IB it becomes black but when I run the app on a simulator it has the default color of the uitableview background. </p>
  
  <p>When i set the <strong>default</strong> color to yellow for example it is always yellow for both IB and simulator. </p>
  
  <p>why the <strong>default</strong> background color is black in IB and gray with stripes in a simulator?</p>