public override async Task ApplyAsync(IList list, IProgress <AsyncProgressEntry> progress, CancellationToken cancellation)
 {
     try {
         await base.ApplyAsync(list, progress, cancellation).ConfigureAwait(false);
     } finally {
         SelectedShowroomPage.RemovePreviewSphere();
     }
 }
 protected override void ApplyOverride(ShowroomObject obj)
 {
     SelectedShowroomPage.UpdatePreview(obj, true);
 }
 protected override void ApplyOverride(ShowroomObject obj)
 {
     SelectedShowroomPage.FixLighting(obj);
 }