> On android's slide down config screen (the one with wifi, bluetooth, etc toggles) I always have to stop and think a bit to determine if wifi is on or not.

I'm a bit surprised by this -- it transitions from dark gray on light gray when it's off to _bright_ white on _bright_ blue when it's on. This would seem to mirror many physical things that have status lights which are not illuminated when disabled and are illuminated when enabled. What's the source of initial confusion for you?