diff --git a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Handler.cs b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Handler.cs
index a675a5a..c4724e4 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Handler.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Handler.cs
@@ -15,7 +15,6 @@
 // You should have received a copy of the GNU General Public License
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-using QuickLook.Common.Plugin;
 using System.IO;
 using System.Linq;
 
@@ -46,8 +45,4 @@ internal static class Handler
 
         return false;
     }
-
-    public static void Prepare(string path, ContextObject context)
-    {
-    }
 }
diff --git a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml
index 95718c7..aa2b44c 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml
+++ b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml
@@ -11,11 +11,35 @@
     <Grid>
         <helix:HelixViewport3D x:Name="viewer"
                                CameraRotationMode="Turnball"
+                               CoordinateSystemHorizontalPosition="Left"
+                               CoordinateSystemLabelForeground="Black"
+                               CoordinateSystemVerticalPosition="Bottom"
+                               IsViewCubeEdgeClicksEnabled="False"
+                               RotateAroundMouseDownPoint="False"
+                               ShowCameraInfo="False"
+                               ShowCameraTarget="True"
+                               ShowCoordinateSystem="False"
+                               ShowFrameRate="False"
                                ShowViewCube="False"
                                ZoomAroundMouseDownPoint="True"
                                ZoomExtentsWhenLoaded="true">
             <ModelVisual3D x:Name="modelVisual" />
             <helix:DefaultLights />
+            <helix:HelixViewport3D.Camera>
+                <PerspectiveCamera x:Name="camera"
+                                   FarPlaneDistance="30000"
+                                   FieldOfView="45"
+                                   LookDirection="0,0,-1"
+                                   NearPlaneDistance="0.1"
+                                   Position="0,91,414"
+                                   UpDirection="0,1,0" />
+            </helix:HelixViewport3D.Camera>
+            <helix:HelixViewport3D.Background>
+                <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
+                    <GradientStop Offset="0" Color="Transparent" />
+                    <GradientStop Offset="1" Color="Transparent" />
+                </LinearGradientBrush>
+            </helix:HelixViewport3D.Background>
             <helix:HelixViewport3D.RotateGesture>
                 <MouseGesture MouseAction="LeftClick" />
             </helix:HelixViewport3D.RotateGesture>
diff --git a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml.cs b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml.cs
index 4bff78d..d22a050 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/HelixPanel.xaml.cs
@@ -42,7 +42,7 @@ public partial class HelixPanel : UserControl
     {
         var modelImporter = new ModelImporter();
         var model3DGroup = modelImporter.Load(_path);
-        var diffuseMaterial = new DiffuseMaterial(new SolidColorBrush(Colors.DarkGray));
+        var diffuseMaterial = new DiffuseMaterial(new SolidColorBrush(Color.FromRgb(0xA0, 0xA0, 0xA0)));
 
         foreach (GeometryModel3D child in model3DGroup.Children.Cast<GeometryModel3D>())
         {
diff --git a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Plugin.cs b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Plugin.cs
index 04b5290..6bb428d 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Plugin.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/Plugin.cs
@@ -54,7 +54,7 @@ public class Plugin : IViewer
     {
         _hp = new HelixPanel(path);
         context.ViewerContent = _hp;
-        context.Title = $"{Path.GetFileName(path)}";
+        context.Title = Path.GetFileName(path);
         context.IsBusy = false;
     }
 
diff --git a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/QuickLook.Plugin.HelixViewer.csproj b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/QuickLook.Plugin.HelixViewer.csproj
index 51d2f0f..e2bcaea 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/QuickLook.Plugin.HelixViewer.csproj
+++ b/QuickLook.Plugin/QuickLook.Plugin.HelixViewer/QuickLook.Plugin.HelixViewer.csproj
@@ -52,21 +52,8 @@
     </PropertyGroup>
 
     <ItemGroup>
-		<PackageReference Include="HelixToolkit" Version="2.27.0">
-			<PrivateAssets>all</PrivateAssets>
-		</PackageReference>
-		<PackageReference Include="HelixToolkit.Wpf" Version="2.27.0">
-			<PrivateAssets>all</PrivateAssets>
-		</PackageReference>
-        <PackageReference Include="PureSharpCompress" Version="0.40.0">
-            <PrivateAssets>all</PrivateAssets>
-        </PackageReference>
-        <PackageReference Include="System.Memory" Version="4.6.3">
-            <PrivateAssets>all</PrivateAssets>
-        </PackageReference>
-        <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.2">
-            <PrivateAssets>all</PrivateAssets>
-        </PackageReference>
+        <PackageReference Include="HelixToolkit" Version="2.27.0" />
+        <PackageReference Include="HelixToolkit.Wpf" Version="2.27.0" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/QuickLook/QuickLook.csproj b/QuickLook/QuickLook.csproj
index 3a3acf0..f0654e6 100644
--- a/QuickLook/QuickLook.csproj
+++ b/QuickLook/QuickLook.csproj
@@ -114,10 +114,12 @@
         <PackageReference Include="System.Memory" Version="4.6.3">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
+        <PackageReference Include="System.Buffers" Version="4.6.1">
+            <PrivateAssets>all</PrivateAssets>
+        </PackageReference>
         <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="6.1.2">
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <!--<PackageReference Include="System.Buffers" Version="4.6.1" />-->
     </ItemGroup>
 
     <ItemGroup>