Changing the header bar colour

[Ewan]

Hoping that I'm not missing a completely obvious setting (again), how do I change the colour of the header bar?

As you can see, I need it to be gray, not black:

http://www.oaktreephoto.co.uk/dev/gallery/photo.php?photo=566

Thanks.

[Ewan]

Found it in /templates/pages/ee_2_default/all/basic_stuff_1.php