active = false;
    ViewerUIF(ViewerCtrl control, Registry registry, PixelsDimensions pxsDims,                 int defaultT, int defaultZ)    {        super("", registry.getTaskBar());        active = false;        this.control = control;        im = IconManager.getInstance(registry);        int maxT = pxsDims.sizeT-1;        int maxZ = pxsDims.sizeZ-1;        setJMenuBar(createMenuBar(maxZ, maxT));        initBars(registry, maxT, defaultT, maxZ, defaultZ);        initSliders(maxT, defaultT, maxZ, defaultZ);        initContainers();        buildGUI();    }