public CIMPointSymbol GetPointSymbol()

{
  var options = ApplicationOptions.EditingOptions;
  await QueuedTask.Run(() =>
  {
    //There are 4 vertex symbol settings - selected, unselected and the
    //current vertex selected and unselected.
    var reg_select = options.GetVertexSymbolOptions(VertexSymbolType.RegularSelected);
    var reg_unsel = options.GetVertexSymbolOptions(VertexSymbolType.RegularUnselected);
    var curr_sel = options.GetVertexSymbolOptions(VertexSymbolType.CurrentSelected);
    var curr_unsel = options.GetVertexSymbolOptions(VertexSymbolType.CurrentUnselected);

    //to convert the options to a symbol use
    //GetPointSymbol
    var reg_sel_pt_symbol = reg_select.GetPointSymbol();
    //ditto for reg_unsel, curr_sel, curr_unsel
  });
}