convert VB to C#

Pilz.Simple3DFileParser/Model/Material.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Drawing;
+using global::System.Numerics;
+
+namespace Pilz.S3DFileParser
+{
+    public class Material : IComparable
+    {
+        public Image Image { get; set; } = null;
+        public Color? Color { get; set; } = default;
+        public float? Opacity { get; set; } = default;
+        public Vector2 Wrap { get; set; } = new Vector2(10497f, 10497f);
+        public Vector2 Scale { get; set; } = new Vector2(1.0f, 1.0f);
+        public object Tag { get; set; } = null;
+
+        public int CompareTo(object obj)
+        {
+            if (obj is object)
+            {
+                if (ReferenceEquals(obj, this))
+                {
+                    return 0;
+                }
+                else
+                {
+                    return -1;
+                }
+            }
+            else
+            {
+                return 1;
+            }
+        }
+    }
+}