/* default onplotcalc colors */
_defopclr()
{
        setvar("_GCV57", castint(getconfdef("alt_window_label_color")));
        setvar("_GCV58", castint(getconfdef("alt_label_background")));
        setvar("_GCV59", castint(getconfdef("alt_active_text_color")));
        setvar("_GCV60", castint(getconfdef("alt_active_label_background")));
}