How can I get some color in Firefox?

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http://forums.opensuse.org – I'm using Firefox 3.6 RC1 which has a white title bar. I'd like to have a colored one. I managed to get a colored scroll bar by changing my theme and switching from MozillaFirefox-branding-openSUSE to branding-upstream. Anyone know how I can do the same thing with the title bar? (Distributions)