Sencha touch panel darkens

I am using Sencha touch with phonegap. Whenever I click (or touch) at the top of my main panel near the phone status bar the entire screen darkens until I 开发者_Python百科release. I moved my background down some 20px and found that the screen darkens when I click on the actually panel itself. This only seems to happen in the iPhone simulator and not while I'm debugging in the browser. I'm not sure what is causing this but is there any way to turn this off?

It's apparently a Sencha bug. See this forum thread: http://www.sencha.com/forum/showthread.php?157903-Screen-flickers-when-clicked-on-the-side