diff --git a/MatterControl.csproj b/MatterControl.csproj
index 108457041..9dc5d7367 100644
--- a/MatterControl.csproj
+++ b/MatterControl.csproj
@@ -607,6 +607,7 @@
       <DependentUpon>InspectForm.cs</DependentUpon>
     </EmbeddedResource>
     <None Include="App.config" />
+    <None Include="appsettings.json" />
     <None Include="Library\LibraryProviders.cd" />
     <None Include="Library\Widgets\ListView\ListView.cd" />
     <None Include="SlicerConfiguration\Settings\SettingsDiagram.cd" />
@@ -730,6 +731,8 @@
     <PackageReference Include="Markdig" Version="0.15.2" />
     <PackageReference Include="MIConvexHull" Version="1.1.17.1019" />
     <PackageReference Include="Mindscape.Raygun4Net" Version="5.5.4" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="2.1.1" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.1.1" />
     <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
     <PackageReference Include="Zeroconf" Version="3.0.30" />
   </ItemGroup>
diff --git a/Program.cs b/Program.cs
index a985394dc..d6b704dbb 100644
--- a/Program.cs
+++ b/Program.cs
@@ -5,6 +5,8 @@ using System.Threading;
 using MatterHackers.Agg.Platform;
 using MatterHackers.MatterControl.DataStorage;
 using MatterHackers.MatterControl.SettingsManagement;
+using MatterHackers.MatterControl.SlicerConfiguration;
+using Microsoft.Extensions.Configuration;
 using Mindscape.Raygun4Net;
 
 namespace MatterHackers.MatterControl
@@ -17,6 +19,11 @@ namespace MatterHackers.MatterControl
 
 		private static RaygunClient _raygunClient;
 
+		private class SlicerOptions
+		{
+			public bool Debug { get; set; }
+		}
+
 		/// <summary>
 		/// The main entry point for the application.
 		/// </summary>
@@ -40,7 +47,19 @@ namespace MatterHackers.MatterControl
 				_raygunClient = new RaygunClient("hQIlyUUZRGPyXVXbI6l1dA=="); // this is the PC key
 			}
 
-			AggContext.Init(embeddedResourceName: "config.json");
+			// Set default Agg providers
+			AggContext.Config.ProviderTypes.SystemWindow = "MatterHackers.Agg.UI.OpenGLSystemWindow, agg_platform_win32";
+			AggContext.Config.ProviderTypes.SystemWindowProvider = "MatterHackers.Agg.UI.WinformsSystemWindowProvider, agg_platform_win32";
+
+			// Load optional user configuration
+			IConfiguration config = new ConfigurationBuilder()
+				.AddJsonFile("appsettings.json", optional: true)
+				.Build();
+
+			// Override defaults via configuration
+			config.Bind("Agg:ProviderTypes", AggContext.Config.ProviderTypes);
+			config.Bind("Agg:GraphicsMode", AggContext.Config.GraphicsMode);
+			Slicer.RunInProcess = config.GetValue<bool>("MatterControl:Slicer:Debug");
 
 			// Make sure we have the right working directory as we assume everything relative to the executable.
 			Directory.SetCurrentDirectory(Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location));
diff --git a/SlicerConfiguration/Slicer.cs b/SlicerConfiguration/Slicer.cs
index eab507c02..5ca02ac32 100644
--- a/SlicerConfiguration/Slicer.cs
+++ b/SlicerConfiguration/Slicer.cs
@@ -54,7 +54,7 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 		private static Dictionary<Mesh, MeshPrintOutputSettings> meshPrintOutputSettings = new Dictionary<Mesh, MeshPrintOutputSettings>();
 
 		public static List<bool> extrudersUsed = new List<bool>();
-		public static bool runInProcess = false;
+		public static bool RunInProcess = false;
 
 		public static List<(Matrix4X4 matrix, string fileName)> GetStlFileLocations(IObject3D object3D, ref string mergeRules, PrinterConfig printer, IProgress<ProgressStatus> progressReporter, CancellationToken cancellationToken)
 		{
@@ -293,7 +293,7 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 
 					if (AggContext.OperatingSystem == OSType.Android
 						|| AggContext.OperatingSystem == OSType.Mac
-						|| runInProcess)
+						|| RunInProcess)
 					{
 						EventHandler WriteOutput = (s, e) =>
 						{
diff --git a/Submodules/agg-sharp b/Submodules/agg-sharp
index 4d61415fe..c5d5886d5 160000
--- a/Submodules/agg-sharp
+++ b/Submodules/agg-sharp
@@ -1 +1 @@
-Subproject commit 4d61415fe2ae91d1d67d3ee3023286bb27bef80c
+Subproject commit c5d5886d54c40e56258c88c8351227574593db1b
diff --git a/appsettings.json b/appsettings.json
new file mode 100644
index 000000000..92a13a950
--- /dev/null
+++ b/appsettings.json
@@ -0,0 +1,11 @@
+{
+	"Agg": {
+		"GraphicsMode": {
+			"Color": 32,
+			"Depth": 24,
+			"FSAASamples": 8
+		}
+	},
+	"MatterControl": {
+	}
+}
\ No newline at end of file