Hi TG Community! a question that is bugging me like mad!

The vertical navbar (Web - Reflections Theme) i have about 15 pages for a site i am designing in this fantastic software but i would like all the pages to have its own colour nav bar? without colouring our pages, i have tryed and played with the web properties but no luck. please and you help and advise to note am a newbe to Xara!

Thanks