Added translaprent support

Runtime/Models/ShaderEnum.cs

@@ -1,9 +1,22 @@
 namespace Misaki.HdrpToon
 {
+    internal enum SurfaceType
+    {
+        Opaque,
+        Transparent
+    }
+
+    internal enum DoubleSidedMode
+    {
+        None,
+        Mirror,
+        Flip
+    }
+
     internal enum ShadingMode
     {
         Standard,
-        SDF,
+        SDF
     }
 
     internal enum MaterialType

Runtime/Models/UTSRenderPassSettings.cs

@@ -79,9 +79,11 @@ namespace Misaki.HdrpToon
 #endif
         }
 
+#if UNITY_EDITOR
         public static SerializedObject GetSerializedSettings()
         {
             return new(GetOrCreateSettings());
         }
+#endif
     }
 }