message: Removed unused variable.  KW caught it.
diff: @@ -1787,7 +1787,6 @@ void MainWindow::buildWindowGeometryViewer()
  // If changing the contents of the world, stop current frame, then rerender world
  auto rockMyWorld = [&]() {
  - auto &world = frame->child("world");
  frame->waitOnFrame(); // must wait before changing the world
  frame->child("world").render();
  fb.resetAccumulation();
  