diff --git a/Source/Editor/CustomEditors/Editors/ArrayEditor.cs b/Source/Editor/CustomEditors/Editors/ArrayEditor.cs
index f12dadde1..335fd64a7 100644
--- a/Source/Editor/CustomEditors/Editors/ArrayEditor.cs
+++ b/Source/Editor/CustomEditors/Editors/ArrayEditor.cs
@@ -2,6 +2,7 @@
 
 using System;
 using System.Collections;
+using FlaxEditor.Scripting;
 using FlaxEngine;
 
 namespace FlaxEditor.CustomEditors.Editors
@@ -48,6 +49,15 @@ namespace FlaxEditor.CustomEditors.Editors
                         Array.Copy(array, oldSize - 1, newValues, i, 1);
                     }
                 }
+                else if (newSize > 0)
+                {
+                    // Initialize new entries with default values
+                    var defaultValue = TypeUtils.GetDefaultValue(new ScriptType(elementType));
+                    for (int i = 0; i < newSize; i++)
+                    {
+                        newValues.SetValue(defaultValue, i);
+                    }
+                }
 
                 SetValue(newValues);
             }
diff --git a/Source/Editor/CustomEditors/Editors/ListEditor.cs b/Source/Editor/CustomEditors/Editors/ListEditor.cs
index 305d2e2c9..19ed9675b 100644
--- a/Source/Editor/CustomEditors/Editors/ListEditor.cs
+++ b/Source/Editor/CustomEditors/Editors/ListEditor.cs
@@ -58,7 +58,7 @@ namespace FlaxEditor.CustomEditors.Editors
                 }
                 else if (newSize > 0)
                 {
-                    // Fill new entries
+                    // Fill new entries with default value
                     var defaultValue = Scripting.TypeUtils.GetDefaultValue(ElementType);
                     for (int i = oldSize; i < newSize; i++)
                     {
diff --git a/Source/Editor/Scripting/TypeUtils.cs b/Source/Editor/Scripting/TypeUtils.cs
index 70108f06f..60f64ab8e 100644
--- a/Source/Editor/Scripting/TypeUtils.cs
+++ b/Source/Editor/Scripting/TypeUtils.cs
@@ -59,11 +59,19 @@ namespace FlaxEditor.Scripting
             if (type.Type == typeof(MaterialSceneTextures))
                 return MaterialSceneTextures.BaseColor;
             if (type.IsValueType)
-                return type.CreateInstance();
+            {
+                var value = type.CreateInstance();
+                Utilities.Utils.InitDefaultValues(value);
+                return value;
+            }
             if (new ScriptType(typeof(object)).IsAssignableFrom(type))
                 return null;
             if (type.CanCreateInstance)
-                return type.CreateInstance();
+            {
+                var value = type.CreateInstance();
+                Utilities.Utils.InitDefaultValues(value);
+                return value;
+            }
             throw new NotSupportedException("Cannot create default value for type " + type);
         }
 
diff --git a/Source/Editor/Utilities/Utils.cs b/Source/Editor/Utilities/Utils.cs
index 5f1636239..cd9935da3 100644
--- a/Source/Editor/Utilities/Utils.cs
+++ b/Source/Editor/Utilities/Utils.cs
@@ -4,6 +4,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
+using System.Reflection;
 using System.Runtime.InteropServices;
 using FlaxEditor.SceneGraph;
 using FlaxEditor.Scripting;
@@ -1732,5 +1733,44 @@ namespace FlaxEditor.Utilities
             distance = 0;
             return false;
         }
+
+        /// <summary>
+        /// Initializes the object fields and properties with their default values based on <see cref="System.ComponentModel.DefaultValueAttribute"/>.
+        /// </summary>
+        /// <param name="obj">The object.</param>
+        public static void InitDefaultValues(object obj)
+        {
+            var scriptType = TypeUtils.GetObjectType(obj);
+            if (!scriptType)
+                return;
+            var isStructure = scriptType.IsStructure;
+
+            var fields = scriptType.GetFields(BindingFlags.Default | BindingFlags.Instance | BindingFlags.Public);
+            for (var i = 0; i < fields.Length; i++)
+            {
+                var field = fields[i];
+                var attr = field.GetAttribute<System.ComponentModel.DefaultValueAttribute>();
+                if (attr != null)
+                {
+                    field.SetValue(obj, attr.Value);
+                }
+                else if (isStructure)
+                {
+                    // C# doesn't support default values for structure members so initialize them
+                    field.SetValue(obj, TypeUtils.GetDefaultValue(field.ValueType));
+                }
+            }
+
+            var properties = scriptType.GetProperties(BindingFlags.Default | BindingFlags.Instance | BindingFlags.Public);
+            for (var i = 0; i < properties.Length; i++)
+            {
+                var property = properties[i];
+                var attr = property.GetAttribute<System.ComponentModel.DefaultValueAttribute>();
+                if (attr != null)
+                {
+                    property.SetValue(obj, attr.Value);
+                }
+            }
+        }
     }
 }