private void SaveSymbolAsFavorite(object parameter)
{
//Create copy by serializing/deserializing
SymbolAttributeSet.FavoriteId = Guid.NewGuid().ToString();
var json = new JavaScriptSerializer().Serialize(SymbolAttributeSet);
SymbolAttributeSet favoriteSet = new JavaScriptSerializer().Deserialize<SymbolAttributeSet>(json);
//Add to favorites
favoriteSet.GeneratePreviewSymbol();
Favorites.Add(favoriteSet);
//Serialize Favorites and save to file
var favoritesJson = new JavaScriptSerializer().Serialize(Favorites);
File.WriteAllText(_favoritesFilePath, favoritesJson);
}