In my app I'm tinting the navigation bar to a darker blue color.  

The new gradient effects in iOS6 cause the navigation bar to appear much lighter (see below).

![UINavBar tints in iOS5 and iOS6](https://i.stack.imgur.com/8N0wT.png)

If I adjust the color to be darker to compensate for iOS6, it will appear too dark in iOS5.

**What's the best way to make them appear the same (or nearly the same)?** 

Detect the OS version and set different tint colors? Use a background image? Or is there a style setting I can use to change the gradient behavior?