diff --git a/Source/Editor/Content/GUI/ContentView.cs b/Source/Editor/Content/GUI/ContentView.cs
index 6065ca9f8..40a06c1b6 100644
--- a/Source/Editor/Content/GUI/ContentView.cs
+++ b/Source/Editor/Content/GUI/ContentView.cs
@@ -711,7 +711,7 @@ namespace FlaxEditor.Content.GUI
         protected override void PerformLayoutBeforeChildren()
         {
             float width = GetClientArea().Width;
-            float x = 0, y = 0;
+            float x = 0, y = 1;
             float viewScale = _viewScale * 0.97f;
 
             switch (ViewType)
@@ -722,21 +722,22 @@ namespace FlaxEditor.Content.GUI
                 int itemsToFit = Mathf.FloorToInt(width / defaultItemsWidth) - 1;
                 if (itemsToFit < 1)
                     itemsToFit = 1;
-                float itemsWidth = width / Mathf.Max(itemsToFit, 1);
+                int xSpace = 4;
+                float itemsWidth = width / Mathf.Max(itemsToFit, 1) - xSpace;
                 float itemsHeight = itemsWidth / defaultItemsWidth * (ContentItem.DefaultHeight * viewScale);
                 var flooredItemsWidth = Mathf.Floor(itemsWidth);
                 var flooredItemsHeight = Mathf.Floor(itemsHeight);
-                x = itemsToFit == 1 ? 0 : itemsWidth / itemsToFit;
+                x = itemsToFit == 1 ? 1 : itemsWidth / itemsToFit + xSpace;
                 for (int i = 0; i < _children.Count; i++)
                 {
                     var c = _children[i];
                     c.Bounds = new Rectangle(Mathf.Floor(x), Mathf.Floor(y), flooredItemsWidth, flooredItemsHeight);
 
-                    x += itemsWidth + itemsWidth / itemsToFit;
+                    x += (itemsWidth + xSpace) + (itemsWidth + xSpace) / itemsToFit;
                     if (x + itemsWidth > width)
                     {
-                        x = itemsToFit == 1 ? 0 : itemsWidth / itemsToFit;
-                        y += itemsHeight + 5;
+                        x = itemsToFit == 1 ? 1 : itemsWidth / itemsToFit + xSpace;
+                        y += itemsHeight + 7;
                     }
                 }
                 if (x > 0)
@@ -751,7 +752,7 @@ namespace FlaxEditor.Content.GUI
                 {
                     var c = _children[i];
                     c.Bounds = new Rectangle(x, y, width, itemsHeight);
-                    y += itemsHeight + 5;
+                    y += itemsHeight + 1;
                 }
                 y += 40.0f;
 
diff --git a/Source/Editor/Content/Items/ContentItem.cs b/Source/Editor/Content/Items/ContentItem.cs
index 66825fb42..b27159aa0 100644
--- a/Source/Editor/Content/Items/ContentItem.cs
+++ b/Source/Editor/Content/Items/ContentItem.cs
@@ -483,6 +483,30 @@ namespace FlaxEditor.Content
             else
                 Render2D.FillRectangle(rectangle, Color.Black);
         }
+        
+        /// <summary>
+        /// Draws the item thumbnail.
+        /// </summary>
+        /// <param name="rectangle">The thumbnail rectangle.</param>
+        /// /// <param name="shadow">Whether or not to draw the shadow. Overrides DrawShadow.</param>
+        public void DrawThumbnail(ref Rectangle rectangle, bool shadow)
+        {
+            // Draw shadow
+            if (shadow)
+            {
+                const float thumbnailInShadowSize = 50.0f;
+                var shadowRect = rectangle.MakeExpanded((DefaultThumbnailSize - thumbnailInShadowSize) * rectangle.Width / DefaultThumbnailSize * 1.3f);
+                if (!_shadowIcon.IsValid)
+                    _shadowIcon = Editor.Instance.Icons.AssetShadow128;
+                Render2D.DrawSprite(_shadowIcon, shadowRect);
+            }
+
+            // Draw thumbnail
+            if (_thumbnail.IsValid)
+                Render2D.DrawSprite(_thumbnail, rectangle);
+            else
+                Render2D.FillRectangle(rectangle, Color.Black);
+        }
 
         /// <summary>
         /// Gets the amount of references to that item.
@@ -655,9 +679,51 @@ namespace FlaxEditor.Content
             {
             case ContentViewType.Tiles:
             {
-                var thumbnailSize = size.X - 2 * DefaultMarginSize;
-                thumbnailRect = new Rectangle(DefaultMarginSize, DefaultMarginSize, thumbnailSize, thumbnailSize);
+                var thumbnailSize = size.X;
+                thumbnailRect = new Rectangle(0, 0, thumbnailSize, thumbnailSize);
                 nameAlignment = TextAlignment.Center;
+                
+                if (this is ContentFolder)
+                {
+                    // Small shadow
+                    var shadowRect = new Rectangle(2, 2, clientRect.Width + 1, clientRect.Height + 1);
+                    var color = Color.Black.AlphaMultiplied(0.2f);
+                    Render2D.FillRectangle(shadowRect, color);
+                    Render2D.FillRectangle(clientRect, style.Background.RGBMultiplied(1.25f));
+                    
+                    if (isSelected)
+                        Render2D.FillRectangle(clientRect, Parent.ContainsFocus ? style.BackgroundSelected : style.LightBackground);
+                    else if (IsMouseOver)
+                        Render2D.FillRectangle(clientRect, style.BackgroundHighlighted);
+
+                    DrawThumbnail(ref thumbnailRect, false);
+                }
+                else
+                {
+                    // Small shadow
+                    var shadowRect = new Rectangle(2, 2, clientRect.Width + 1, clientRect.Height + 1);
+                    var color = Color.Black.AlphaMultiplied(0.2f);
+                    Render2D.FillRectangle(shadowRect, color);
+                    
+                    Render2D.FillRectangle(clientRect, style.Background.RGBMultiplied(1.25f));
+                    Render2D.FillRectangle(TextRectangle, style.LightBackground);
+                    
+                    var accentHeight = 2 * view.ViewScale;
+                    var barRect = new Rectangle(0, thumbnailRect.Height - accentHeight, clientRect.Width, accentHeight);
+                    Render2D.FillRectangle(barRect, Color.DimGray);
+                    
+                    DrawThumbnail(ref thumbnailRect, false);
+                    if (isSelected)
+                    {
+                        Render2D.FillRectangle(textRect, Parent.ContainsFocus ? style.BackgroundSelected : style.LightBackground);
+                        Render2D.DrawRectangle(clientRect, Parent.ContainsFocus ? style.BackgroundSelected : style.LightBackground);
+                    }
+                    else if (IsMouseOver)
+                    {
+                        Render2D.FillRectangle(textRect, style.BackgroundHighlighted);
+                        Render2D.DrawRectangle(clientRect, style.BackgroundHighlighted);
+                    }
+                }
                 break;
             }
             case ContentViewType.List:
@@ -665,23 +731,21 @@ namespace FlaxEditor.Content
                 var thumbnailSize = size.Y - 2 * DefaultMarginSize;
                 thumbnailRect = new Rectangle(DefaultMarginSize, DefaultMarginSize, thumbnailSize, thumbnailSize);
                 nameAlignment = TextAlignment.Near;
+                
+                if (isSelected)
+                    Render2D.FillRectangle(clientRect, Parent.ContainsFocus ? style.BackgroundSelected : style.LightBackground);
+                else if (IsMouseOver)
+                    Render2D.FillRectangle(clientRect, style.BackgroundHighlighted);
+                
+                DrawThumbnail(ref thumbnailRect);
                 break;
             }
             default: throw new ArgumentOutOfRangeException();
             }
-
-            // Draw background
-            if (isSelected)
-                Render2D.FillRectangle(clientRect, Parent.ContainsFocus ? style.BackgroundSelected : style.LightBackground);
-            else if (IsMouseOver)
-                Render2D.FillRectangle(clientRect, style.BackgroundHighlighted);
-
-            // Draw preview
-            DrawThumbnail(ref thumbnailRect);
-
+            
             // Draw short name
             Render2D.PushClip(ref textRect);
-            Render2D.DrawText(style.FontMedium, ShowFileExtension || view.ShowFileExtensions ? FileName : ShortName, textRect, style.Foreground, nameAlignment, TextAlignment.Center, TextWrapping.WrapWords, 0.75f, 0.95f);
+            Render2D.DrawText(style.FontMedium, ShowFileExtension || view.ShowFileExtensions ? FileName : ShortName, textRect, style.Foreground, nameAlignment, TextAlignment.Center, TextWrapping.WrapWords, 1f, 0.95f);
             Render2D.PopClip();
         }
 
diff --git a/Source/Editor/GUI/Tree/TreeNode.cs b/Source/Editor/GUI/Tree/TreeNode.cs
index ced70a281..7e3af05bf 100644
--- a/Source/Editor/GUI/Tree/TreeNode.cs
+++ b/Source/Editor/GUI/Tree/TreeNode.cs
@@ -762,6 +762,10 @@ namespace FlaxEditor.GUI.Tree
                         // Add/Remove
                         tree.AddOrRemoveSelection(this);
                     }
+                    else if (button == MouseButton.Right && tree.Selection.Contains(this))
+                    {
+                        // Do nothing
+                    }
                     else
                     {
                         // Select
diff --git a/Source/Editor/Windows/ContentWindow.cs b/Source/Editor/Windows/ContentWindow.cs
index b1f04c8f5..9d782b13b 100644
--- a/Source/Editor/Windows/ContentWindow.cs
+++ b/Source/Editor/Windows/ContentWindow.cs
@@ -931,6 +931,7 @@ namespace FlaxEditor.Windows
 
             // Add game project on top, plugins in the middle and engine at bottom
             _root.AddChild(Editor.ContentDatabase.Game);
+            Editor.ContentDatabase.Projects.Sort();
             foreach (var project in Editor.ContentDatabase.Projects)
             {
                 project.SortChildrenRecursive();
diff --git a/Source/Engine/Content/Assets/VisualScript.cpp b/Source/Engine/Content/Assets/VisualScript.cpp
index e292a0133..698f1ca8c 100644
--- a/Source/Engine/Content/Assets/VisualScript.cpp
+++ b/Source/Engine/Content/Assets/VisualScript.cpp
@@ -1251,7 +1251,7 @@ void VisualScriptExecutor::ProcessGroupFlow(Box* boxBase, Node* node, Value& val
                     boxBase = node->GetBox(3);
                     if (boxBase->HasConnection())
                         eatBox(node, boxBase->FirstConnection());
-                    Dictionary<Variant, Variant>::Iterator it(dictionary, iteratorValue.Value.AsInt);
+                    Dictionary<Variant, Variant>::Iterator it(&dictionary, iteratorValue.Value.AsInt);
                     ++it;
                     iteratorValue.Value.AsInt = it.Index();
                 }
@@ -1269,12 +1269,12 @@ void VisualScriptExecutor::ProcessGroupFlow(Box* boxBase, Node* node, Value& val
         // Key
         case 1:
             if (iteratorIndex != scope->ReturnedValues.Count() && dictionaryIndex != scope->ReturnedValues.Count())
-                value = Dictionary<Variant, Variant>::Iterator(*scope->ReturnedValues[dictionaryIndex].Value.AsDictionary, scope->ReturnedValues[iteratorIndex].Value.AsInt)->Key;
+                value = Dictionary<Variant, Variant>::Iterator(scope->ReturnedValues[dictionaryIndex].Value.AsDictionary, scope->ReturnedValues[iteratorIndex].Value.AsInt)->Key;
             break;
         // Value
         case 2:
             if (iteratorIndex != scope->ReturnedValues.Count() && dictionaryIndex != scope->ReturnedValues.Count())
-                value = Dictionary<Variant, Variant>::Iterator(*scope->ReturnedValues[dictionaryIndex].Value.AsDictionary, scope->ReturnedValues[iteratorIndex].Value.AsInt)->Value;
+                value = Dictionary<Variant, Variant>::Iterator(scope->ReturnedValues[dictionaryIndex].Value.AsDictionary, scope->ReturnedValues[iteratorIndex].Value.AsInt)->Value;
             break;
         // Break
         case 5:
diff --git a/Source/Engine/Core/Collections/Array.h b/Source/Engine/Core/Collections/Array.h
index 3feae4e73..58117cf0a 100644
--- a/Source/Engine/Core/Collections/Array.h
+++ b/Source/Engine/Core/Collections/Array.h
@@ -938,12 +938,12 @@ public:
 
         FORCE_INLINE bool IsEnd() const
         {
-            return _index == _array->Count();
+            return _index == _array->_count;
         }
 
         FORCE_INLINE bool IsNotEnd() const
         {
-            return _index != _array->Count();
+            return _index != _array->_count;
         }
 
         FORCE_INLINE T& operator*() const
@@ -975,7 +975,7 @@ public:
 
         Iterator& operator++()
         {
-            if (_index != _array->Count())
+            if (_index != _array->_count)
                 _index++;
             return *this;
         }
@@ -983,7 +983,7 @@ public:
         Iterator operator++(int)
         {
             Iterator temp = *this;
-            if (_index != _array->Count())
+            if (_index != _array->_count)
                 _index++;
             return temp;
         }
diff --git a/Source/Engine/Core/Collections/ChunkedArray.h b/Source/Engine/Core/Collections/ChunkedArray.h
index 86473763b..d01711e38 100644
--- a/Source/Engine/Core/Collections/ChunkedArray.h
+++ b/Source/Engine/Core/Collections/ChunkedArray.h
@@ -95,7 +95,6 @@ public:
     struct Iterator
     {
         friend ChunkedArray;
-
     private:
         ChunkedArray* _collection;
         int32 _chunkIndex;
diff --git a/Source/Engine/Core/Collections/Dictionary.h b/Source/Engine/Core/Collections/Dictionary.h
index 2327f3c24..f5ffb1bfa 100644
--- a/Source/Engine/Core/Collections/Dictionary.h
+++ b/Source/Engine/Core/Collections/Dictionary.h
@@ -237,22 +237,28 @@ public:
     {
         friend Dictionary;
     private:
-        Dictionary& _collection;
+        Dictionary* _collection;
         int32 _index;
 
     public:
-        Iterator(Dictionary& collection, const int32 index)
+        Iterator(Dictionary* collection, const int32 index)
             : _collection(collection)
             , _index(index)
         {
         }
 
-        Iterator(Dictionary const& collection, const int32 index)
-            : _collection((Dictionary&)collection)
+        Iterator(Dictionary const* collection, const int32 index)
+            : _collection(const_cast<Dictionary*>(collection))
             , _index(index)
         {
         }
 
+        Iterator()
+            : _collection(nullptr)
+            , _index(-1)
+        {
+        }
+
         Iterator(const Iterator& i)
             : _collection(i._collection)
             , _index(i._index)
@@ -273,27 +279,27 @@ public:
 
         FORCE_INLINE bool IsEnd() const
         {
-            return _index == _collection._size;
+            return _index == _collection->_size;
         }
 
         FORCE_INLINE bool IsNotEnd() const
         {
-            return _index != _collection._size;
+            return _index != _collection->_size;
         }
 
         FORCE_INLINE Bucket& operator*() const
         {
-            return _collection._allocation.Get()[_index];
+            return _collection->_allocation.Get()[_index];
         }
 
         FORCE_INLINE Bucket* operator->() const
         {
-            return &_collection._allocation.Get()[_index];
+            return &_collection->_allocation.Get()[_index];
         }
 
         FORCE_INLINE explicit operator bool() const
         {
-            return _index >= 0 && _index < _collection._size;
+            return _index >= 0 && _index < _collection->_size;
         }
 
         FORCE_INLINE bool operator!() const
@@ -308,7 +314,7 @@ public:
 
         FORCE_INLINE bool operator!=(const Iterator& v) const
         {
-            return _index != v._index || &_collection != &v._collection;
+            return _index != v._index || _collection != v._collection;
         }
 
         Iterator& operator=(const Iterator& v)
@@ -320,10 +326,10 @@ public:
 
         Iterator& operator++()
         {
-            const int32 capacity = _collection.Capacity();
+            const int32 capacity = _collection->_size;
             if (_index != capacity)
             {
-                const Bucket* data = _collection._allocation.Get();
+                const Bucket* data = _collection->_allocation.Get();
                 do
                 {
                     _index++;
@@ -343,7 +349,7 @@ public:
         {
             if (_index > 0)
             {
-                const Bucket* data = _collection._allocation.Get();
+                const Bucket* data = _collection->_allocation.Get();
                 do
                 {
                     _index--;
@@ -633,7 +639,7 @@ public:
     /// <param name="i">Iterator with key and value.</param>
     void Add(const Iterator& i)
     {
-        ASSERT(&i._collection != this && i);
+        ASSERT(i._collection != this && i);
         const Bucket& bucket = *i;
         Add(bucket.Key, bucket.Value);
     }
@@ -667,7 +673,7 @@ public:
     /// <returns>True if cannot remove item from the collection because cannot find it, otherwise false.</returns>
     bool Remove(const Iterator& i)
     {
-        ASSERT(&i._collection == this);
+        ASSERT(i._collection == this);
         if (i)
         {
             ASSERT(_allocation.Get()[i._index].IsOccupied());
@@ -711,7 +717,7 @@ public:
             return End();
         FindPositionResult pos;
         FindPosition(key, pos);
-        return pos.ObjectIndex != -1 ? Iterator(*this, pos.ObjectIndex) : End();
+        return pos.ObjectIndex != -1 ? Iterator(this, pos.ObjectIndex) : End();
     }
 
     /// <summary>
@@ -812,38 +818,38 @@ public:
 public:
     Iterator Begin() const
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     Iterator End() const
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
     Iterator begin()
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     FORCE_INLINE Iterator end()
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
     const Iterator begin() const
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     FORCE_INLINE const Iterator end() const
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
 protected:
diff --git a/Source/Engine/Core/Collections/HashSet.h b/Source/Engine/Core/Collections/HashSet.h
index ad6f8ffc6..107e42e65 100644
--- a/Source/Engine/Core/Collections/HashSet.h
+++ b/Source/Engine/Core/Collections/HashSet.h
@@ -213,17 +213,17 @@ public:
     {
         friend HashSet;
     private:
-        HashSet& _collection;
+        HashSet* _collection;
         int32 _index;
 
-        Iterator(HashSet& collection, const int32 index)
+        Iterator(HashSet* collection, const int32 index)
             : _collection(collection)
             , _index(index)
         {
         }
 
-        Iterator(HashSet const& collection, const int32 index)
-            : _collection((HashSet&)collection)
+        Iterator(HashSet const* collection, const int32 index)
+            : _collection(const_cast<HashSet*>(collection))
             , _index(index)
         {
         }
@@ -244,27 +244,27 @@ public:
     public:
         FORCE_INLINE bool IsEnd() const
         {
-            return _index == _collection.Capacity();
+            return _index == _collection->_size;
         }
 
         FORCE_INLINE bool IsNotEnd() const
         {
-            return _index != _collection.Capacity();
+            return _index != _collection->_size;
         }
 
         FORCE_INLINE Bucket& operator*() const
         {
-            return _collection._allocation.Get()[_index];
+            return _collection->_allocation.Get()[_index];
         }
 
         FORCE_INLINE Bucket* operator->() const
         {
-            return &_collection._allocation.Get()[_index];
+            return &_collection->_allocation.Get()[_index];
         }
 
         FORCE_INLINE explicit operator bool() const
         {
-            return _index >= 0 && _index < _collection._size;
+            return _index >= 0 && _index < _collection->_size;
         }
 
         FORCE_INLINE bool operator !() const
@@ -274,12 +274,12 @@ public:
 
         FORCE_INLINE bool operator==(const Iterator& v) const
         {
-            return _index == v._index && &_collection == &v._collection;
+            return _index == v._index && _collection == v._collection;
         }
 
         FORCE_INLINE bool operator!=(const Iterator& v) const
         {
-            return _index != v._index || &_collection != &v._collection;
+            return _index != v._index || _collection != v._collection;
         }
 
         Iterator& operator=(const Iterator& v)
@@ -291,10 +291,10 @@ public:
 
         Iterator& operator++()
         {
-            const int32 capacity = _collection.Capacity();
+            const int32 capacity = _collection->_size;
             if (_index != capacity)
             {
-                const Bucket* data = _collection._allocation.Get();
+                const Bucket* data = _collection->_allocation.Get();
                 do
                 {
                     _index++;
@@ -314,7 +314,7 @@ public:
         {
             if (_index > 0)
             {
-                const Bucket* data = _collection._allocation.Get();
+                const Bucket* data = _collection->_allocation.Get();
                 do
                 {
                     _index--;
@@ -464,7 +464,7 @@ public:
     /// <param name="i">Iterator with item to add</param>
     void Add(const Iterator& i)
     {
-        ASSERT(&i._collection != this && i);
+        ASSERT(i._collection != this && i);
         const Bucket& bucket = *i;
         Add(bucket.Item);
     }
@@ -498,7 +498,7 @@ public:
     /// <returns>True if cannot remove item from the collection because cannot find it, otherwise false.</returns>
     bool Remove(const Iterator& i)
     {
-        ASSERT(&i._collection == this);
+        ASSERT(i._collection == this);
         if (i)
         {
             ASSERT(_allocation.Get()[i._index].IsOccupied());
@@ -523,7 +523,7 @@ public:
             return End();
         FindPositionResult pos;
         FindPosition(item, pos);
-        return pos.ObjectIndex != -1 ? Iterator(*this, pos.ObjectIndex) : End();
+        return pos.ObjectIndex != -1 ? Iterator(this, pos.ObjectIndex) : End();
     }
 
     /// <summary>
@@ -559,38 +559,38 @@ public:
 public:
     Iterator Begin() const
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     Iterator End() const
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
     Iterator begin()
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     FORCE_INLINE Iterator end()
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
     const Iterator begin() const
     {
-        Iterator i(*this, -1);
+        Iterator i(this, -1);
         ++i;
         return i;
     }
 
     FORCE_INLINE const Iterator end() const
     {
-        return Iterator(*this, _size);
+        return Iterator(this, _size);
     }
 
 protected:
diff --git a/Source/Engine/Debug/DebugDraw.cpp b/Source/Engine/Debug/DebugDraw.cpp
index 97422b9e2..e8489f5b5 100644
--- a/Source/Engine/Debug/DebugDraw.cpp
+++ b/Source/Engine/Debug/DebugDraw.cpp
@@ -920,6 +920,11 @@ void DebugDraw::DrawActors(Actor** selectedActors, int32 selectedActorsCount, bo
     }
 }
 
+void DebugDraw::DrawRay(const Vector3& origin, const Vector3& direction, const Color& color, float duration, bool depthTest)
+{
+    DrawLine(origin, origin + direction, color, duration, depthTest);
+}
+
 void DebugDraw::DrawLine(const Vector3& start, const Vector3& end, const Color& color, float duration, bool depthTest)
 {
     const Float3 startF = start - Context->Origin, endF = end - Context->Origin;
diff --git a/Source/Engine/Debug/DebugDraw.cs b/Source/Engine/Debug/DebugDraw.cs
index af39ebeea..bc000e03d 100644
--- a/Source/Engine/Debug/DebugDraw.cs
+++ b/Source/Engine/Debug/DebugDraw.cs
@@ -31,6 +31,18 @@ namespace FlaxEngine
         {
         }
 
+        /// <summary>
+        /// Draws the line in a direction.
+        /// </summary>
+        /// <param name="origin">The origin of the line.</param>
+        /// <param name="direction">The direction of the line.</param>
+        /// <param name="color">The color.</param>
+        /// <param name="duration">The duration (in seconds). Use 0 to draw it only once.</param>
+        /// <param name="depthTest">If set to <c>true</c> depth test will be performed, otherwise depth will be ignored.</param>
+        public static void DrawRay(Vector3 origin, Vector3 direction, Color color, float duration = 0.0f, bool depthTest = true)
+        {
+        }
+
         /// <summary>
         /// Draws the line.
         /// </summary>
diff --git a/Source/Engine/Debug/DebugDraw.h b/Source/Engine/Debug/DebugDraw.h
index 8cc5452ed..a4f69678a 100644
--- a/Source/Engine/Debug/DebugDraw.h
+++ b/Source/Engine/Debug/DebugDraw.h
@@ -69,6 +69,16 @@ API_CLASS(Static) class FLAXENGINE_API DebugDraw
     /// <param name="drawScenes">True if draw all debug shapes from scenes too or false if draw just from specified actor list.</param>
     API_FUNCTION() static void DrawActors(Actor** selectedActors, int32 selectedActorsCount, bool drawScenes);
 
+    /// <summary>
+    /// Draws the line in a direction.
+    /// </summary>
+    /// <param name="origin">The origin of the line.</param>
+    /// <param name="direction">The direction of the line.</param>
+    /// <param name="color">The color.</param>
+    /// <param name="duration">The duration (in seconds). Use 0 to draw it only once.</param>
+    /// <param name="depthTest">If set to <c>true</c> depth test will be performed, otherwise depth will be ignored.</param>
+    API_FUNCTION() static void DrawRay(const Vector3& origin, const Vector3& direction, const Color& color, float duration = 0.0f, bool depthTest = true);
+
     /// <summary>
     /// Draws the line.
     /// </summary>
@@ -604,6 +614,7 @@ API_CLASS(Static) class FLAXENGINE_API DebugDraw
     API_FUNCTION() static void DrawText(const StringView& text, const Transform& transform, const Color& color, int32 size = 32, float duration = 0.0f);
 };
 
+#define DEBUG_DRAW_RAY(origin, direction, color, duration, depthTest) DebugDraw::DrawRay(origin, direction, color, duration, depthTest)
 #define DEBUG_DRAW_LINE(start, end, color, duration, depthTest) DebugDraw::DrawLine(start, end, color, duration, depthTest)
 #define DEBUG_DRAW_LINES(lines, transform, color, duration, depthTest) DebugDraw::DrawLines(lines, transform, color, duration, depthTest)
 #define DEBUG_DRAW_BEZIER(p1, p2, p3, p4, color, duration, depthTest) DebugDraw::DrawBezier(p1, p2, p3, p4, color, duration, depthTest)
diff --git a/Source/Engine/Engine/NativeInterop.Unmanaged.cs b/Source/Engine/Engine/NativeInterop.Unmanaged.cs
index 879f804d2..2c1bab744 100644
--- a/Source/Engine/Engine/NativeInterop.Unmanaged.cs
+++ b/Source/Engine/Engine/NativeInterop.Unmanaged.cs
@@ -581,9 +581,9 @@ namespace FlaxEngine.Interop
         }
 
         [UnmanagedCallersOnly]
-        internal static IntPtr NewStringLength(sbyte* text, int length)
+        internal static IntPtr NewStringUTF8(sbyte* text, int length)
         {
-            return ManagedString.ToNativeWeak(new string(text, 0, length));
+            return ManagedString.ToNativeWeak(new string(text, 0, length, System.Text.Encoding.UTF8));
         }
 
         [UnmanagedCallersOnly]
diff --git a/Source/Engine/Level/Actor.cpp b/Source/Engine/Level/Actor.cpp
index 388379237..394d5c9dc 100644
--- a/Source/Engine/Level/Actor.cpp
+++ b/Source/Engine/Level/Actor.cpp
@@ -496,6 +496,11 @@ void Actor::AddTagRecursive(const Tag& tag)
     Tags.AddUnique(tag);
 }
 
+void Actor::RemoveTag(const Tag& tag)
+{
+    Tags.Remove(tag);
+}
+
 PRAGMA_DISABLE_DEPRECATION_WARNINGS
 
 const String& Actor::GetTag() const
diff --git a/Source/Engine/Level/Actor.h b/Source/Engine/Level/Actor.h
index 31cfe2473..5d66e7a16 100644
--- a/Source/Engine/Level/Actor.h
+++ b/Source/Engine/Level/Actor.h
@@ -153,6 +153,11 @@ public:
     /// <param name="tag">The tag to add.</param>
     API_FUNCTION() void AddTagRecursive(const Tag& tag);
 
+    /// Removes a tag to the actor
+    /// </summary>
+    /// <param name="tag">The tag to remove.</param>
+    API_FUNCTION() void RemoveTag(const Tag& tag);
+
     /// <summary>
     /// Gets the name of the tag.
     /// [Deprecated in v1.5]
diff --git a/Source/Engine/Physics/Colliders/CharacterController.cpp b/Source/Engine/Physics/Colliders/CharacterController.cpp
index 488acd6e4..42455daa4 100644
--- a/Source/Engine/Physics/Colliders/CharacterController.cpp
+++ b/Source/Engine/Physics/Colliders/CharacterController.cpp
@@ -8,6 +8,8 @@
 #include "Engine/Serialization/Serialization.h"
 #include "Engine/Engine/Time.h"
 
+#define CC_MIN_SIZE 0.001f
+
 CharacterController::CharacterController(const SpawnParams& params)
     : Collider(params)
     , _controller(nullptr)
@@ -100,10 +102,9 @@ void CharacterController::SetStepOffset(float value)
     {
         const float scaling = _cachedScale.GetAbsolute().MaxValue();
         const float contactOffset = Math::Max(_contactOffset, ZeroTolerance);
-        const float minSize = 0.001f;
-        const float height = Math::Max(Math::Abs(_height) * scaling, minSize);
-        const float radius = Math::Max(Math::Abs(_radius) * scaling - contactOffset, minSize);
-        PhysicsBackend::SetControllerStepOffset(_controller, Math::Min(value, height + radius * 2.0f - minSize));
+        const float height = Math::Max(Math::Abs(_height) * scaling, CC_MIN_SIZE);
+        const float radius = Math::Max(Math::Abs(_radius) * scaling - contactOffset, CC_MIN_SIZE);
+        PhysicsBackend::SetControllerStepOffset(_controller, Math::Min(value, height + radius * 2.0f - CC_MIN_SIZE));
     }
 }
 
@@ -175,9 +176,8 @@ CharacterController::CollisionFlags CharacterController::Move(const Vector3& dis
 void CharacterController::DrawPhysicsDebug(RenderView& view)
 {
     const float scaling = _cachedScale.GetAbsolute().MaxValue();
-    const float minSize = 0.001f;
-    const float radius = Math::Max(Math::Abs(_radius) * scaling, minSize);
-    const float height = Math::Max(Math::Abs(_height) * scaling, minSize);
+    const float radius = Math::Max(Math::Abs(_radius) * scaling, CC_MIN_SIZE);
+    const float height = Math::Max(Math::Abs(_height) * scaling, CC_MIN_SIZE);
     const Vector3 position = _transform.LocalToWorld(_center);
     if (view.Mode == ViewMode::PhysicsColliders)
         DEBUG_DRAW_TUBE(position, Quaternion::Euler(90, 0, 0), radius, height, Color::LightYellow, 0, true);
@@ -188,9 +188,8 @@ void CharacterController::DrawPhysicsDebug(RenderView& view)
 void CharacterController::OnDebugDrawSelected()
 {
     const float scaling = _cachedScale.GetAbsolute().MaxValue();
-    const float minSize = 0.001f;
-    const float radius = Math::Max(Math::Abs(_radius) * scaling, minSize);
-    const float height = Math::Max(Math::Abs(_height) * scaling, minSize);
+    const float radius = Math::Max(Math::Abs(_radius) * scaling, CC_MIN_SIZE);
+    const float height = Math::Max(Math::Abs(_height) * scaling, CC_MIN_SIZE);
     const Vector3 position = _transform.LocalToWorld(_center);
     DEBUG_DRAW_WIRE_TUBE(position, Quaternion::Euler(90, 0, 0), radius, height, Color::GreenYellow, 0, false);
 
@@ -231,9 +230,8 @@ void CharacterController::UpdateSize() const
     if (_controller)
     {
         const float scaling = _cachedScale.GetAbsolute().MaxValue();
-        const float minSize = 0.001f;
-        const float radius = Math::Max(Math::Abs(_radius) * scaling - Math::Max(_contactOffset, ZeroTolerance), minSize);
-        const float height = Math::Max(Math::Abs(_height) * scaling, minSize);
+        const float radius = Math::Max(Math::Abs(_radius) * scaling - Math::Max(_contactOffset, ZeroTolerance), CC_MIN_SIZE);
+        const float height = Math::Max(Math::Abs(_height) * scaling, CC_MIN_SIZE);
         PhysicsBackend::SetControllerSize(_controller, radius, height);
     }
 }
@@ -245,12 +243,14 @@ void CharacterController::CreateShape()
 
 void CharacterController::UpdateBounds()
 {
-    void* actor = _shape ? PhysicsBackend::GetShapeActor(_shape) : nullptr;
-    if (actor)
-        PhysicsBackend::GetActorBounds(actor, _box);
-    else
-        _box = BoundingBox(_transform.Translation);
+    const float scaling = GetScale().GetAbsolute().MaxValue();
+    const float radius = Math::Max(Math::Abs(_radius) * scaling, CC_MIN_SIZE);
+    const float height = Math::Max(Math::Abs(_height) * scaling, CC_MIN_SIZE);
+    const Vector3 position = _transform.LocalToWorld(_center);
+    const Vector3 extent(radius, height * 0.5f + radius, radius);
+    _box = BoundingBox(position - extent, position + extent);
     BoundingSphere::FromBox(_box, _sphere);
+    DEBUG_DRAW_BOX(_box, Color::Red.AlphaMultiplied(0.4f), 2.0f, true);
 }
 
 void CharacterController::AddMovement(const Vector3& translation, const Quaternion& rotation)
diff --git a/Source/Engine/Platform/Base/WindowBase.cpp b/Source/Engine/Platform/Base/WindowBase.cpp
index 5cff76361..49b4cc631 100644
--- a/Source/Engine/Platform/Base/WindowBase.cpp
+++ b/Source/Engine/Platform/Base/WindowBase.cpp
@@ -405,6 +405,7 @@ void WindowBase::OnResize(int32 width, int32 height)
         _swapChain->Resize(width, height);
     if (RenderTask)
         RenderTask->Resize(width, height);
+    Resized({ static_cast<float>(width), static_cast<float>(height) });
     INVOKE_EVENT_PARAMS_2(OnResize, &width, &height);
 }
 
diff --git a/Source/Engine/Platform/Base/WindowBase.h b/Source/Engine/Platform/Base/WindowBase.h
index e4e7d2080..812359fb4 100644
--- a/Source/Engine/Platform/Base/WindowBase.h
+++ b/Source/Engine/Platform/Base/WindowBase.h
@@ -315,6 +315,11 @@ public:
     /// </summary>
     Action Closed;
 
+    /// <summary>
+    /// Event fired when window gets resized.
+    /// </summary>
+    Delegate<Float2> Resized;
+
     /// <summary>
     /// Event fired when window gets focused.
     /// </summary>
diff --git a/Source/Engine/Scripting/Runtime/DotNet.cpp b/Source/Engine/Scripting/Runtime/DotNet.cpp
index f4ae5b1ec..1bcef50b8 100644
--- a/Source/Engine/Scripting/Runtime/DotNet.cpp
+++ b/Source/Engine/Scripting/Runtime/DotNet.cpp
@@ -365,8 +365,8 @@ MString* MCore::String::GetEmpty(MDomain* domain)
 
 MString* MCore::String::New(const char* str, int32 length, MDomain* domain)
 {
-    static void* NewStringLengthPtr = GetStaticMethodPointer(TEXT("NewStringLength"));
-    return (MString*)CallStaticMethod<void*, const char*, int>(NewStringLengthPtr, str, length);
+    static void* NewStringUTF8Ptr = GetStaticMethodPointer(TEXT("NewStringUTF8"));
+    return (MString*)CallStaticMethod<void*, const char*, int>(NewStringUTF8Ptr, str, length);
 }
 
 MString* MCore::String::New(const Char* str, int32 length, MDomain* domain)
diff --git a/Source/Engine/UI/GUI/Common/Slider.cs b/Source/Engine/UI/GUI/Common/Slider.cs
new file mode 100644
index 000000000..d7324ae0e
--- /dev/null
+++ b/Source/Engine/UI/GUI/Common/Slider.cs
@@ -0,0 +1,365 @@
+using System;
+
+namespace FlaxEngine.GUI;
+
+/// <summary>
+/// The slider control.
+/// </summary>
+public class Slider : ContainerControl
+{
+    /// <summary>
+    /// The minimum value.
+    /// </summary>
+    protected float _minimum;
+
+    /// <summary>
+    /// The maximum value.
+    /// </summary>
+    protected float _maximum = 100f;
+
+    /// <summary>
+    /// Gets or sets the minimum value.
+    /// </summary>
+    [EditorOrder(20), Tooltip("The minimum value.")]
+    public float Minimum
+    {
+        get => _minimum;
+        set
+        {
+            if (value > _maximum)
+                throw new ArgumentOutOfRangeException();
+            if (WholeNumbers)
+                value = Mathf.RoundToInt(value);
+            _minimum = value;
+            if (Value < _minimum)
+                Value = _minimum;
+        }
+    }
+
+    /// <summary>
+    /// Gets or sets the maximum value.
+    /// </summary>
+    [EditorOrder(30), Tooltip("The maximum value.")]
+    public float Maximum
+    {
+        get => _maximum;
+        set
+        {
+            if (value < _minimum || Mathf.IsZero(value))
+                throw new ArgumentOutOfRangeException();
+            if (WholeNumbers)
+                value = Mathf.RoundToInt(value);
+            _maximum = value;
+            if (Value > _maximum)
+                Value = _maximum;
+        }
+    }
+
+    private float _value = 100f;
+    private Rectangle _thumbRect;
+    private float _thumbCenter;
+    private Float2 _thumbSize = new Float2(16, 16);
+    private bool _isSliding;
+
+    /// <summary>
+    /// Gets or sets the value (normalized to range 0-100).
+    /// </summary>
+    [EditorOrder(10), Tooltip("The current value.")]
+    public float Value
+    {
+        get => _value;
+        set
+        {
+            value = Mathf.Clamp(value, Minimum, Maximum);
+            if (WholeNumbers)
+                value = Mathf.RoundToInt(value);
+            if (!Mathf.NearEqual(value, _value))
+            {
+                _value = value;
+
+                // Update
+                UpdateThumb();
+                ValueChanged?.Invoke();
+            }
+        }
+    }
+
+    /// <summary>
+    /// The local position of the thumb center
+    /// </summary>
+    [HideInEditor]
+    public Float2 ThumbCenter => new(_thumbCenter, Height / 2);
+
+    /// <summary>
+    /// The local position of the beginning of the track.
+    /// </summary>
+    [HideInEditor]
+    public Float2 TrackBeginning => new(_thumbSize.X / 2, Height / 2);
+
+    /// <summary>
+    /// The local position of the end of the track.
+    /// </summary>
+    [HideInEditor]
+    public Float2 TrackEnd => new(Width - _thumbSize.X / 2, Height / 2);
+    
+    /// <summary>
+    /// The height of the track.
+    /// </summary>
+    [EditorOrder(40), Tooltip("The track height.")]
+    public int TrackHeight { get; set; } = 2;
+
+    /// <summary>
+    /// The thumb size.
+    /// </summary>
+    [EditorOrder(41), Tooltip("The size of the thumb.")]
+    public Float2 ThumbSize {  
+        get => _thumbSize;
+        set
+        {
+            _thumbSize = value;
+            UpdateThumb();
+        }
+    }
+
+    /// <summary>
+    /// Whether to fill the track.
+    /// </summary>
+    [EditorOrder(42), Tooltip("Fill the track.")]
+    public bool FillTrack = true;
+    
+    /// <summary>
+    /// Whether to use whole numbers.
+    /// </summary>
+    [EditorOrder(43), Tooltip("Use whole numbers.")]
+    public bool WholeNumbers = false;
+
+    /// <summary>
+    /// The color of the slider track line
+    /// </summary>
+    [EditorDisplay("Track Style"), EditorOrder(2010), Tooltip("The color of the slider track line."), ExpandGroups]
+    public Color TrackLineColor { get; set; }
+
+    /// <summary>
+    /// The color of the slider fill track line
+    /// </summary>
+    [EditorDisplay("Track Style"), EditorOrder(2011), VisibleIf(nameof(FillTrack)), Tooltip("The color of the slider fill track line.")]
+    public Color TrackFillLineColor { get; set; }
+
+    /// <summary>
+    /// Gets the size of the track.
+    /// </summary>
+    private float TrackWidth => Width;
+
+    /// <summary>
+    /// Gets or sets the brush used for slider track drawing.
+    /// </summary>
+    [EditorDisplay("Track Style"), EditorOrder(2012), Tooltip("The brush used for slider track drawing.")]
+    public IBrush TrackBrush { get; set; }
+
+    /// <summary>
+    /// Gets or sets the brush used for slider fill track drawing.
+    /// </summary>
+    [EditorDisplay("Track Style"), EditorOrder(2013), VisibleIf(nameof(FillTrack)), Tooltip("The brush used for slider fill track drawing.")]
+    public IBrush FillTrackBrush { get; set; }
+
+    /// <summary>
+    /// The color of the slider thumb when it's not selected
+    /// </summary>
+    [EditorDisplay("Thumb Style"), EditorOrder(2030), Tooltip("The color of the slider thumb when it's not selected."), ExpandGroups]
+    public Color ThumbColor { get; set; }
+
+    /// <summary>
+    /// The color of the slider thumb when it's selected
+    /// </summary>
+    [EditorDisplay("Thumb Style"), EditorOrder(2031), Tooltip("The color of the slider thumb when it's selected.")]
+    public Color ThumbColorSelected { get; set; }
+
+    /// <summary>
+    /// Gets or sets the brush used for slider thumb drawing.
+    /// </summary>
+    [EditorDisplay("Thumb Style"), EditorOrder(2032), Tooltip("The brush of the slider thumb.")]
+    public IBrush ThumbBrush { get; set; }
+
+    /// <summary>
+    /// Gets a value indicating whether user is using a slider.
+    /// </summary>
+    [HideInEditor]
+    public bool IsSliding => _isSliding;
+
+    /// <summary>
+    /// Occurs when sliding starts.
+    /// </summary>
+    public event Action SlidingStart;
+
+    /// <summary>
+    /// Occurs when sliding ends.
+    /// </summary>
+    public event Action SlidingEnd;
+    
+    /// <summary>
+    /// Occurs when value gets changed.
+    /// </summary>
+    public event Action ValueChanged;
+    
+    /// <summary>
+    /// Initializes a new instance of the <see cref="Slider"/> class.
+    /// </summary>
+    public Slider()
+    : this(120, 30)
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="Slider"/> class.
+    /// </summary>
+    /// <param name="width">The width.</param>
+    /// <param name="height">The height.</param>
+    public Slider(float width, float height)
+    : base(0, 0, width, height)
+    {
+        var style = Style.Current;
+        TrackLineColor = style.BackgroundHighlighted;
+        TrackFillLineColor = style.LightBackground;
+        ThumbColor = style.BackgroundNormal;
+        ThumbColorSelected = style.BackgroundSelected;
+        UpdateThumb();
+    }
+
+    private void UpdateThumb()
+    {
+        // Cache data
+        float trackSize = TrackWidth;
+        float range = Maximum - Minimum;
+        float pixelRange = trackSize - _thumbSize.X;
+        float perc = (_value - Minimum) / range;
+        float thumbPosition = (int)(perc * pixelRange);
+        _thumbCenter = thumbPosition + _thumbSize.X / 2;
+        _thumbRect = new Rectangle(thumbPosition, (Height - _thumbSize.Y) / 2, _thumbSize.X, _thumbSize.Y);
+    }
+
+    private void EndSliding()
+    {
+        _isSliding = false;
+        EndMouseCapture();
+        SlidingEnd?.Invoke();
+    }
+
+    /// <inheritdoc />
+    public override void Draw()
+    {
+        base.Draw();
+        
+        // Draw track line
+        //var lineRect = new Rectangle(4, (Height - TrackHeight) / 2, Width - 8, TrackHeight);
+        var lineRect = new Rectangle(_thumbSize.X / 2, (Height - TrackHeight) / 2, Width - _thumbSize.X, TrackHeight);
+        if (TrackBrush != null)
+            TrackBrush.Draw(lineRect, TrackLineColor);
+        else
+            Render2D.FillRectangle(lineRect, TrackLineColor);
+        
+        // Draw track fill
+        if (FillTrack)
+        {
+            var fillLineRect = new Rectangle(_thumbSize.X / 2, (Height - TrackHeight - 2) / 2, Width - (Width - _thumbCenter) - _thumbSize.X / 2, TrackHeight + 2);
+            Render2D.PushClip(ref fillLineRect);
+            if (FillTrackBrush != null)
+                FillTrackBrush.Draw(lineRect, TrackFillLineColor);
+            else
+                Render2D.FillRectangle(lineRect, TrackFillLineColor);
+            Render2D.PopClip();
+        }
+        
+        // Draw thumb
+        var thumbColor = _isSliding ? ThumbColorSelected : ThumbColor;
+        if (ThumbBrush != null)
+            ThumbBrush.Draw(_thumbRect, thumbColor);
+        else
+            Render2D.FillRectangle(_thumbRect, thumbColor);
+    }
+
+    /// <inheritdoc />
+    public override void OnLostFocus()
+    {
+        if (_isSliding)
+        {
+            EndSliding();
+        }
+
+        base.OnLostFocus();
+    }
+
+    /// <inheritdoc />
+    public override bool OnMouseDown(Float2 location, MouseButton button)
+    {
+        if (button == MouseButton.Left)
+        {
+            Focus();
+            float mousePosition = location.X;
+
+            if (_thumbRect.Contains(ref location))
+            {
+                // Start sliding
+                _isSliding = true;
+                StartMouseCapture();
+                SlidingStart?.Invoke();
+                return true;
+            }
+            else
+            {
+                // Click change
+                Value += (mousePosition < _thumbCenter ? -1 : 1) * 10;
+            }
+        }
+
+        return base.OnMouseDown(location, button);
+    }
+
+    /// <inheritdoc />
+    public override void OnMouseMove(Float2 location)
+    {
+        if (_isSliding)
+        {
+            // Update sliding
+            var slidePosition = location + Root.TrackingMouseOffset;
+            Value = Mathf.Remap(slidePosition.X, 4, TrackWidth - 4, Minimum, Maximum);
+        }
+        else
+        {
+            base.OnMouseMove(location);
+        }
+    }
+
+    /// <inheritdoc />
+    public override bool OnMouseUp(Float2 location, MouseButton button)
+    {
+        if (button == MouseButton.Left && _isSliding)
+        {
+            EndSliding();
+            return true;
+        }
+
+        return base.OnMouseUp(location, button);
+    }
+
+    /// <inheritdoc />
+    public override void OnEndMouseCapture()
+    {
+        // Check if was sliding
+        if (_isSliding)
+        {
+            EndSliding();
+        }
+        else
+        {
+            base.OnEndMouseCapture();
+        }
+    }
+
+    /// <inheritdoc />
+    protected override void OnSizeChanged()
+    {
+        base.OnSizeChanged();
+
+        UpdateThumb();
+    }
+}