private Paragraph GeneratePreview(LinkedList <object> list)
        {
            // 富文本预览
            Paragraph paragraph = new Paragraph();

            foreach (var a in list)
            {
                if (a is TextColor textColor)
                {
                    paragraph.Inlines.Add(new Run()
                    {
                        Text = textColor.Text.Replace("\\n", "\n"), Foreground = new SolidColorBrush(GetKeyColor(textColor.Key))
                    });
                }
                else if (a is TextIcon textIcon)
                {
                    var image = GetKeyImage(textIcon.Key);
                    if (image != null)
                    {
                        paragraph.Inlines.Add(new InlineUIContainer(new Image {
                            Source = BitmapUtil.BitmapToBitmapImage(image, 20, 20),
                            Width  = 20,
                            Height = 20
                        }));
                    }
                }
            }
            return(paragraph);
        }
        private void ChangeBackgroundImage(Bitmap bitmap)
        {
            var value = true;

            dispatcher.Invoke(new Action(() => { value = IsVisible; }), DispatcherPriority.Normal);

            if (!value)
            {
                return;
            }

            dispatcher.BeginInvoke(new Action(() => { Background = new ImageBrush(BitmapUtil.BitmapToBitmapImage(bitmap, 800, 450)); }), DispatcherPriority.Normal);
            Thread.Sleep(5000);
        }