Open the URL and click the pop up menu. The text of the highlighted item (the one with the dark background) should be white. Instead, it remains black like when it's not highlighted (see screenshot). Setting the foregroung color attribute of the menu title disables the default highlighting behavior. Consider not setting the attribute if the item's color is black (or inherited?), or find a way to control the highlighting behavior even with custom colors.
Created attachment 9237 [details] Screen shot
Filed new bug about the colored options problem. But the basic case where black turns to white when highlighted, is now fixed.
http://bugzilla.opendarwin.org/show_bug.cgi?id=9769 Colored options in new popup control may need to change color when highlighted