diff --git a/Spine/SpineObject.cs b/Spine/SpineObject.cs
index d5735d7..1c13496 100644
--- a/Spine/SpineObject.cs
+++ b/Spine/SpineObject.cs
@@ -177,7 +177,6 @@ namespace Spine
                 // 拷贝调试属性
                 EnableDebug = other.EnableDebug;
                 DebugTexture = other.DebugTexture;
-                DebugNonTexture = other.DebugNonTexture;
                 DebugBounds = other.DebugBounds;
                 DebugBones = other.DebugBones;
                 DebugRegions = other.DebugRegions;
@@ -253,15 +252,10 @@ namespace Spine
         /// </summary>
         public bool DebugTexture { get; set; } = true;
 
-        /// <summary>
-        /// 是否显示非纹理内容, 一个总开关
-        /// </summary>
-        public bool DebugNonTexture { get; set; } = true;
-
         /// <summary>
         /// 显示包围盒
         /// </summary>
-        public bool DebugBounds { get; set; } = true;
+        public bool DebugBounds { get; set; } = false;
 
         /// <summary>
         /// 显示骨骼
@@ -864,7 +858,7 @@ namespace Spine
             else
             {
                 if (DebugTexture) DrawTexture(target, states);
-                if (DebugNonTexture) DrawNonTexture(target);
+                DrawNonTexture(target);
             }
         }
 
diff --git a/SpineViewer/Models/SpineObjectModel.cs b/SpineViewer/Models/SpineObjectModel.cs
index 3a8c549..116d266 100644
--- a/SpineViewer/Models/SpineObjectModel.cs
+++ b/SpineViewer/Models/SpineObjectModel.cs
@@ -42,7 +42,7 @@ namespace SpineViewer.Models
         /// </summary>
         public SpineObjectModel(string skelPath, string? atlasPath = null, SpineVersion? version = null)
         {
-            _spineObject = new(skelPath, atlasPath, version) { DebugNonTexture = false };
+            _spineObject = new(skelPath, atlasPath, version);
             _skins = _spineObject.Data.Skins.Select(v => v.Name).ToImmutableArray();
             _slotAttachments = _spineObject.Data.SlotAttachments.ToFrozenDictionary(it => it.Key, it => it.Value.Keys);
             _animations = _spineObject.Data.Animations.Select(v => v.Name).ToImmutableArray();
@@ -73,7 +73,7 @@ namespace SpineViewer.Models
         public bool IsSelected
         {
             get { lock (_lock) return _isSelected; }
-            set { lock (_lock) if (SetProperty(ref _isSelected, value)) _spineObject.DebugNonTexture = _isSelected; }
+            set { lock (_lock) SetProperty(ref _isSelected, value); }
         }
         private bool _isSelected = false;
 
diff --git a/SpineViewer/ViewModels/SFMLRendererViewModel.cs b/SpineViewer/ViewModels/SFMLRendererViewModel.cs
index 244d6e6..15f53ac 100644
--- a/SpineViewer/ViewModels/SFMLRendererViewModel.cs
+++ b/SpineViewer/ViewModels/SFMLRendererViewModel.cs
@@ -31,6 +31,16 @@ namespace SpineViewer.ViewModels
         private readonly ObservableCollectionWithLock<SpineObjectModel> _models;
         private readonly ISFMLRenderer _renderer;
 
+        /// <summary>
+        /// 被选中对象的背景颜色
+        /// </summary>
+        private static readonly SFML.Graphics.Color _selectedBackgroundColor = new(255, 255, 255, 50);
+
+        /// <summary>
+        /// 被选中对象背景顶点缓冲区
+        /// </summary>
+        private readonly SFML.Graphics.VertexArray _selectedBackgroundVertices = new(SFML.Graphics.PrimitiveType.Quads, 4); // XXX: 暂时未使用 Dispose 释放
+
         /// <summary>
         /// 预览画面坐标轴颜色
         /// </summary>
@@ -381,6 +391,18 @@ namespace SpineViewer.ViewModels
                             sp.Update(0); // 避免物理效果出现问题
                             sp.Update(delta);
 
+                            // 为选中对象绘制一个半透明背景
+                            if (sp.IsSelected)
+                            {
+                                var rc = sp.GetCurrentBounds().ToFloatRect();
+                                _selectedBackgroundVertices[0] = new(new(rc.Left, rc.Top), _selectedBackgroundColor);
+                                _selectedBackgroundVertices[1] = new(new(rc.Left + rc.Width, rc.Top), _selectedBackgroundColor);
+                                _selectedBackgroundVertices[2] = new(new(rc.Left + rc.Width, rc.Top + rc.Height), _selectedBackgroundColor);
+                                _selectedBackgroundVertices[3] = new(new(rc.Left, rc.Top + rc.Height), _selectedBackgroundColor);
+                                _renderer.Draw(_selectedBackgroundVertices);
+                            }
+
+                            // 仅在预览画面临时启用调试模式
                             sp.EnableDebug = true;
                             _renderer.Draw(sp);
                             sp.EnableDebug = false;