diff --git a/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs b/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
index 23a85dd..f82defc 100644
--- a/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/DebugDraw.cs
@@ -19,9 +19,9 @@ freely, subject to the following restrictions:
 */
 
 using System;
+using Silk.NET.OpenGL;
 using DotRecast.Core;
 using DotRecast.Recast.Toolset.Builder;
-using Silk.NET.OpenGL;
 
 namespace DotRecast.Recast.Demo.Draw;
 
diff --git a/src/DotRecast.Recast.Demo/Draw/DrawMode.cs b/src/DotRecast.Recast.Demo/Draw/DrawMode.cs
index 8e5aba5..d5feda8 100644
--- a/src/DotRecast.Recast.Demo/Draw/DrawMode.cs
+++ b/src/DotRecast.Recast.Demo/Draw/DrawMode.cs
@@ -18,7 +18,6 @@ freely, subject to the following restrictions:
 3. This notice may not be removed or altered from any source distribution.
 */
 
-using System.Collections.Immutable;
 using DotRecast.Core;
 
 namespace DotRecast.Recast.Demo.Draw;
diff --git a/src/DotRecast.Recast.Demo/Draw/GLU.cs b/src/DotRecast.Recast.Demo/Draw/GLU.cs
index 6b91d5e..7390daf 100644
--- a/src/DotRecast.Recast.Demo/Draw/GLU.cs
+++ b/src/DotRecast.Recast.Demo/Draw/GLU.cs
@@ -18,7 +18,6 @@ freely, subject to the following restrictions:
 
 using System;
 using DotRecast.Core;
-using Silk.NET.OpenGL;
 
 namespace DotRecast.Recast.Demo.Draw;
 
diff --git a/src/DotRecast.Recast.Demo/Draw/IOpenGLDraw.cs b/src/DotRecast.Recast.Demo/Draw/IOpenGLDraw.cs
index 5646fb4..b59f59c 100644
--- a/src/DotRecast.Recast.Demo/Draw/IOpenGLDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/IOpenGLDraw.cs
@@ -1,5 +1,4 @@
 using DotRecast.Core;
-using Silk.NET.OpenGL;
 
 namespace DotRecast.Recast.Demo.Draw;
 
diff --git a/src/DotRecast.Recast.Demo/Draw/ModernOpenGLDraw.cs b/src/DotRecast.Recast.Demo/Draw/ModernOpenGLDraw.cs
index 5d4c835..23160dc 100644
--- a/src/DotRecast.Recast.Demo/Draw/ModernOpenGLDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/ModernOpenGLDraw.cs
@@ -1,8 +1,7 @@
 using System;
-using System.Collections.Generic;
 using System.IO;
-using DotRecast.Core;
 using Silk.NET.OpenGL;
+using DotRecast.Core;
 
 namespace DotRecast.Recast.Demo.Draw;
 
diff --git a/src/DotRecast.Recast.Demo/Draw/NavMeshRenderer.cs b/src/DotRecast.Recast.Demo/Draw/NavMeshRenderer.cs
index bb24a6d..f5522ec 100644
--- a/src/DotRecast.Recast.Demo/Draw/NavMeshRenderer.cs
+++ b/src/DotRecast.Recast.Demo/Draw/NavMeshRenderer.cs
@@ -19,13 +19,10 @@ freely, subject to the following restrictions:
 */
 
 using System.Collections.Generic;
-using System.Diagnostics.Tracing;
 using DotRecast.Core;
 using DotRecast.Detour;
 using DotRecast.Recast.Toolset.Builder;
 using DotRecast.Recast.Toolset.Geom;
-using DotRecast.Recast.Demo.UI;
-using DotRecast.Recast.Toolset;
 
 namespace DotRecast.Recast.Demo.Draw;
 
diff --git a/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs b/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
index 0d07308..be652fb 100644
--- a/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
+++ b/src/DotRecast.Recast.Demo/Draw/RecastDebugDraw.cs
@@ -20,7 +20,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using System.Numerics;
 using DotRecast.Core;
 using DotRecast.Detour;
 using DotRecast.Recast.Toolset.Builder;