public enum SelectionMethod : System.Enum, System.IComparable, System.IConvertible, System.IFormattable, System.ISpanFormattable  

var options = ApplicationOptions.SelectionOptions;

QueuedTask.Run(() =>
{
  var defaultColor = options.DefaultSelectionColor;

  var color = options.SelectionColor as CIMRGBColor;
  options.SetSelectionColor(ColorFactory.Instance.CreateRGBColor(255, 0, 0));


  var defaultFill = options.DefaultSelectionFillColor;
  var fill = options.SelectionFillColor;
  var isHatched = options.IsSelectionFillHatched;
  options.SetSelectionFillColor(ColorFactory.Instance.CreateRGBColor(100, 100, 0));
  if (!isHatched)
    options.SetSelectionFillIsHatched(true);

  var showSelectionChip = options.ShowSelectionChip;
  options.SetShowSelectionChip(!showSelectionChip);

  var showSelectionGraphic = options.ShowSelectionGraphic;
  options.SetShowSelectionGraphic(!showSelectionGraphic);

  var saveSelection = options.SaveSelection;
  options.SetSaveSelection(!saveSelection);

  var defaultTol = options.DefaultSelectionTolerance;
  var tol = options.SelectionTolerance;
  options.SetSelectionTolerance(2 * defaultTol);

  // extension methods available 
  var selMethod = options.SelectionMethod;
  options.SetSelectionMethod(SelectionMethod.Contains);

  var combMethod = options.CombinationMethod;
  options.SetCombinationMethod(SelectionCombinationMethod.Add);

  // note that the following SelectionCombinationMethod is not supported
  //options.SetCombinationMethod(SelectionCombinationMethod.XOR);
});

var options = ApplicationOptions.SelectionOptions;

QueuedTask.Run(() =>
{
  var defaultColor = options.DefaultSelectionColor;

  var color = options.SelectionColor as CIMRGBColor;
  options.SetSelectionColor(ColorFactory.Instance.CreateRGBColor(255, 0, 0));


  var defaultFill = options.DefaultSelectionFillColor;
  var fill = options.SelectionFillColor;
  var isHatched = options.IsSelectionFillHatched;
  options.SetSelectionFillColor(ColorFactory.Instance.CreateRGBColor(100, 100, 0));
  if (!isHatched)
    options.SetSelectionFillIsHatched(true);

  var showSelectionChip = options.ShowSelectionChip;
  options.SetShowSelectionChip(!showSelectionChip);

  var showSelectionGraphic = options.ShowSelectionGraphic;
  options.SetShowSelectionGraphic(!showSelectionGraphic);

  var saveSelection = options.SaveSelection;
  options.SetSaveSelection(!saveSelection);

  var defaultTol = options.DefaultSelectionTolerance;
  var tol = options.SelectionTolerance;
  options.SetSelectionTolerance(2 * defaultTol);

  // extension methods available 
  var selMethod = options.SelectionMethod;
  options.SetSelectionMethod(SelectionMethod.Contains);

  var combMethod = options.CombinationMethod;
  options.SetCombinationMethod(SelectionCombinationMethod.Add);

  // note that the following SelectionCombinationMethod is not supported
  //options.SetCombinationMethod(SelectionCombinationMethod.XOR);
});