Head material was added

Models/Materials/HeadMaterial.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Media;
+
+namespace StructureHelper.Models.Materials
+{
+    public class HeadMaterial : IHeadMaterial
+    {
+        public string Name { get; set; }
+        public Color Color { get; set; }
+        public MaterialDefinitionBase Material { get; set; }
+
+        public HeadMaterial()
+        {
+            Thread.Sleep(100);
+            var randomR = new Random(new Random((int)DateTime.Now.Ticks % 1000).Next(50)).Next(0, 255);
+            var randomG = new Random(new Random((int)DateTime.Now.Ticks % 200).Next(100, 200)).Next(0, 255);
+            var randomB = new Random(new Random((int)DateTime.Now.Ticks % 50).Next(500, 1000)).Next(0, 255);
+            Color = Color.FromRgb((byte)randomR, (byte)randomG, (byte)randomB);
+        }
+    }
+}

Models/Materials/IHeadMaterial.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Media;
+
+namespace StructureHelper.Models.Materials
+{
+    public interface IHeadMaterial
+    {
+        string Name { get; set; }
+        Color Color { get; set; }
+        MaterialDefinitionBase Material { get; set; }
+    }
+}