public IReadOnlyList<ValueTuple<string,List<string>>> GetAvailableFonts()

//Note: see also SymbolFactory.Instance.GetAvailableFonts() which returns the
//same list. Use for TextAndGraphicsElementsOptions.GetAvailableFonts() convenience

QueuedTask.Run(() =>
{
  //A list of tuples of Font name + associated Font Styles, one tuple per
  //font, is returned
  var fonts = ApplicationOptions.TextAndGraphicsElementsOptions.GetAvailableFonts();
  StringBuilder sb = new StringBuilder();
  sb.AppendLine("Pro Fonts\r\n============================");
  foreach (var font in fonts)
  {
    var styles = string.Join(",", font.fontStyles);
    sb.AppendLine($"{font.fontName}, [{styles}]");
  }
  System.Diagnostics.Debug.WriteLine(sb.ToString());
});