diff --git a/src/DotRecast.Recast.Demo/Tools/ConvexVolumeTool.cs b/src/DotRecast.Recast.Demo/Tools/ConvexVolumeTool.cs
index 230fa71..86b42ec 100644
--- a/src/DotRecast.Recast.Demo/Tools/ConvexVolumeTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/ConvexVolumeTool.cs
@@ -20,7 +20,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using Silk.NET.Windowing;
 using DotRecast.Core;
 using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
diff --git a/src/DotRecast.Recast.Demo/Tools/CrowdProfilingTool.cs b/src/DotRecast.Recast.Demo/Tools/CrowdProfilingTool.cs
index e4f046c..314e7cd 100644
--- a/src/DotRecast.Recast.Demo/Tools/CrowdProfilingTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/CrowdProfilingTool.cs
@@ -18,7 +18,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
 using DotRecast.Core;
 using DotRecast.Detour;
@@ -28,7 +27,6 @@ using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
 using DotRecast.Recast.DemoTool;
 using ImGuiNET;
-using Silk.NET.Windowing;
 using static DotRecast.Recast.Demo.Draw.DebugDraw;
 
 namespace DotRecast.Recast.Demo.Tools;
diff --git a/src/DotRecast.Recast.Demo/Tools/CrowdTool.cs b/src/DotRecast.Recast.Demo/Tools/CrowdTool.cs
index 100e9fc..26a7378 100644
--- a/src/DotRecast.Recast.Demo/Tools/CrowdTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/CrowdTool.cs
@@ -20,8 +20,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using System.Collections.Immutable;
-using System.Diagnostics;
 using DotRecast.Core;
 using DotRecast.Detour;
 using DotRecast.Detour.Crowd;
@@ -30,11 +28,9 @@ using DotRecast.Detour.QueryResults;
 using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
 using DotRecast.Recast.DemoTool;
-using DotRecast.Recast.DemoTool.Geom;
 using ImGuiNET;
 using static DotRecast.Recast.Demo.Draw.DebugDraw;
 using static DotRecast.Recast.Demo.Draw.DebugDrawPrimitives;
-using static DotRecast.Core.RcMath;
 
 namespace DotRecast.Recast.Demo.Tools;
 
diff --git a/src/DotRecast.Recast.Demo/Tools/DynamicUpdateTool.cs b/src/DotRecast.Recast.Demo/Tools/DynamicUpdateTool.cs
index 323dbf9..02fa2c5 100644
--- a/src/DotRecast.Recast.Demo/Tools/DynamicUpdateTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/DynamicUpdateTool.cs
@@ -18,13 +18,8 @@ freely, subject to the following restrictions:
 
 
 using System;
-using System.Collections;
 using System.Collections.Generic;
-using System.Collections.Immutable;
-using System.Diagnostics;
 using System.IO;
-using System.Numerics;
-using System.Runtime.Serialization;
 using System.Threading.Tasks;
 using DotRecast.Core;
 using DotRecast.Detour.Dynamic;
@@ -37,8 +32,6 @@ using DotRecast.Recast.Demo.Tools.Gizmos;
 using DotRecast.Recast.Demo.UI;
 using DotRecast.Recast.DemoTool;
 using ImGuiNET;
-using Silk.NET.OpenAL;
-using Silk.NET.Windowing;
 using static DotRecast.Recast.Demo.Draw.DebugDraw;
 using static DotRecast.Recast.Demo.Draw.DebugDrawPrimitives;
 
diff --git a/src/DotRecast.Recast.Demo/Tools/JumpLinkBuilderTool.cs b/src/DotRecast.Recast.Demo/Tools/JumpLinkBuilderTool.cs
index 1a40435..a4143b6 100644
--- a/src/DotRecast.Recast.Demo/Tools/JumpLinkBuilderTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/JumpLinkBuilderTool.cs
@@ -17,16 +17,13 @@ freely, subject to the following restrictions:
 */
 
 using System.Collections.Generic;
-using System.Linq;
 using DotRecast.Core;
-using Silk.NET.Windowing;
 using DotRecast.Detour.Extras.Jumplink;
 using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
 using DotRecast.Recast.DemoTool;
 using DotRecast.Recast.DemoTool.Geom;
 using ImGuiNET;
-using static DotRecast.Core.RcMath;
 using static DotRecast.Recast.Demo.Draw.DebugDraw;
 using static DotRecast.Recast.Demo.Draw.DebugDrawPrimitives;
 
diff --git a/src/DotRecast.Recast.Demo/Tools/OffMeshConnectionTool.cs b/src/DotRecast.Recast.Demo/Tools/OffMeshConnectionTool.cs
index 0be4941..c33b1b5 100644
--- a/src/DotRecast.Recast.Demo/Tools/OffMeshConnectionTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/OffMeshConnectionTool.cs
@@ -19,7 +19,6 @@ freely, subject to the following restrictions:
 */
 
 using System;
-using Silk.NET.Windowing;
 using DotRecast.Core;
 using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
diff --git a/src/DotRecast.Recast.Demo/Tools/TestNavmeshTool.cs b/src/DotRecast.Recast.Demo/Tools/TestNavmeshTool.cs
index 6ae9edd..f07da2e 100644
--- a/src/DotRecast.Recast.Demo/Tools/TestNavmeshTool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/TestNavmeshTool.cs
@@ -7,7 +7,6 @@ using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
 using DotRecast.Recast.DemoTool;
 using ImGuiNET;
-using static DotRecast.Core.RcMath;
 using static DotRecast.Recast.Demo.Draw.DebugDraw;
 using static DotRecast.Recast.Demo.Draw.DebugDrawPrimitives;
 
diff --git a/src/DotRecast.Recast.Demo/Tools/Tool.cs b/src/DotRecast.Recast.Demo/Tools/Tool.cs
index be8078f..76dd86c 100644
--- a/src/DotRecast.Recast.Demo/Tools/Tool.cs
+++ b/src/DotRecast.Recast.Demo/Tools/Tool.cs
@@ -20,7 +20,6 @@ freely, subject to the following restrictions:
 
 using DotRecast.Core;
 using DotRecast.Recast.Demo.Draw;
-using Silk.NET.Windowing;
 
 namespace DotRecast.Recast.Demo.Tools;