public CIMColor DefaultGuideColor {get;}

var lastToolActive = ApplicationOptions.LayoutOptions.KeepLastToolActive;
var warnOnSurrounds = ApplicationOptions.LayoutOptions.WarnAboutAssociatedSurrounds;
//eg <Install_Path>\Resources\LayoutTemplates\en-US
var gallery_path = ApplicationOptions.LayoutOptions.LayoutTemplatePath;
var defaultGuideColor = ApplicationOptions.LayoutOptions.DefaultGuideColor;
QueuedTask.Run(() =>
{
  var guideColor = ApplicationOptions.LayoutOptions.GetGuideColor();
});