The color of your header bar is so similar to the chrome of my browser that I just spent a stupid amount of time trying to find where the search box was. I was ignoring it at the top because I didn't realize it was part of the page.
closed as too localized by Juan Manuel Formoso, kiamlaluno, Daniel Fischer, Mark Trapp, jonsca Jul 19 '12 at 0:13
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The bar's color is fine to me; Chrome's top bar has a bottom border to separate the UI from the viewport.
Plus, something won't be changed just to make it nice on one browser. It has to be a major change that would affect the layout/design on every browser.
I suggest that if you still find this to be a problem, you should consider installing a theme with darker colors.
EDIT: I misread your original post—no matter what browser you're on, the original point still stands. An entire design aspect won't be changed just to satisfy users of a single browser.