Gets or sets whether clicking an image opens it in a lightbox over the viewer: the image as large
as fits, never enlarged past its natural size, on a dimmed backdrop. Clicking anywhere, the close
button or Escape closes it, and focus returns to where it was. A zoomable image shows the zoom-in
cursor and also opens with Enter or Space while it has focus; an image inside a link opens the
link instead. Defaults to false. Can be set from a style, e.g. for every viewer of an application.
public bool IsImageZoomEnabled { get; set; }