Thread:Skin talk:Chameleon/Menu customization via xml possible?

Hi, I have a clean install of MW and the Chameleon skin, everything running smooth as expected. I would like to customize the menu (using fixedhead.xml) by adding new entries. Looking at fixedhead.xml, all I can see in the NavBar are components, which in turn are php files. Does that mean that the only way to customize the navbar is to edit the php files or write new components? Or am I overlooking an easy way to achieve this? Let's say I'd like to add one simple (flat) link to "Special:SpecialPages" and a dropdown item "Foo" with subitems "Bar1" and "Bar2" to the navbar. Thanks for your help!