title: iOS 7, unselected tint color?
body: <p>I'm upgrading my app to meet iOS 7 guidelines. My main tab bar controller has a blue background and the default gray "unselected" tint makes the icons nearly invisible. How can I change the tint for these icons? I'd like them to be black or something that contrasts a lot with the blue background.</p>
  
  <p>I've already configured an app-wide tint using window.TintColor = White, but that only changes the selected color. (Same with TabBar.TintColor)</p>