Looking for the Style Var that ...
 

Controls the color of the links to the popup menus in the blockhead. There should be two, one when it's selected and one when it's not.

--------------- Added [DATE]1259963857[/DATE] at [TIME]1259963857[/TIME] ---------------

Also looking for the color of the font for the selected tab in the navbar.

Get firebug, and add-on for firefox, and do an Inspect Element and it will show you the classes effecting that element.

How do the classes correlate to the stylevars?

For example, looking at the popup menus I was asking about says that the class is 'popupctrl'. However, searching for that in the style vars doesn't turn up anything.

look for it in the style templates it will be in one of the css templates.

^^ Yep, do a Search in Templates for it and you will see if it is a stylevar or it may still be hardcoded (many things still are while it's in beta).

Thanks.