[NTG-context] colors questions

Source: texshow (1) \setupinteraction color name contrastcolor name How do you set the setupinteraction contrastcolor background color ? (2) \defineinteractionmenu, \setupinteractionmenu, \interactionbuttons color name background screen color none foreground name backgroundcolor name foregroundcolor name (2.1) What is "background=" - screen ? - color ? - foreground ? (2.2) What's the difference between - "color" and "foregroundcolor" ? - background=name and backgroundcolor=name ? - how do you set a, or override (1)'s, selected item background color ? -- Best, Alan * using ConTeXt ver: 2008.08.18 14:00 MKIV fmt: 2008.8.22 int: english/english (on Windows XP)