实现提供了完整的弹幕功能，包括多行显示、不同颜色、头像支持、防重叠、椭圆形边框、透明度渐变、点击事件、字体样式设置、暂停/继续功能、过滤功能等。还包含了批处理队列处理逻辑、速率限制、错误处理和性能监控等功能。

YwxAppWpfDanMu/Models/DanMuMessage.cs

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+using System;
+using System.Windows;
+using System.Windows.Media;
+using static System.Net.Mime.MediaTypeNames;
+
+namespace YwxAppWpfDanMu.Models
+{
+    public class DanMuMessage
+    {
+        public string Content { get; set; }
+        public Color Color { get; set; } = Colors.Orange;
+        public string AvatarUrl { get; set; } 
+        public double FontSize { get; set; } = 12;
+        public FontFamily FontFamily { get; set; } = new FontFamily("Microsoft YaHei");
+        public FontWeight FontWeight { get; set; } = FontWeights.Bold;
+        public FontStyle FontStyle { get; set; } = FontStyles.Normal;
+        public double Opacity { get; set; } = 1.0;
+        public object Tag { get; set; }
+        public DateTime Timestamp { get; set; } = DateTime.Now;
+    }
+}