FreeSpaceColor
view->SetHighColor(TrackerSettings().FreeSpaceColor());
fFreeSpaceColor = settings.FreeSpaceColor();
|| fFreeSpaceColor != settings.FreeSpaceColor()
fColorControl->SetValue(settings.FreeSpaceColor());
|| settings.FreeSpaceColor() != kDefaultFreeSpaceColor
|| settings.FreeSpaceColor() != kDefaultFreeSpaceColor
|| settings.FreeSpaceColor() != fFreeSpaceColor
fColorControl->SetValue(settings.FreeSpaceColor());
rgb_color FreeSpaceColor();