diff --git a/CesiumGltf/generated/include/CesiumGltf/ExtensionKhrGaussianSplatting.h b/CesiumGltf/generated/include/CesiumGltf/ExtensionKhrGaussianSplatting.h
index aab5ec892..40f83fddf 100644
--- a/CesiumGltf/generated/include/CesiumGltf/ExtensionKhrGaussianSplatting.h
+++ b/CesiumGltf/generated/include/CesiumGltf/ExtensionKhrGaussianSplatting.h
@@ -21,6 +21,27 @@ struct CESIUMGLTF_API ExtensionKhrGaussianSplatting final
    * key in the `extensions` object. */
   static constexpr const char* ExtensionName = "KHR_gaussian_splatting";
 
+  /**
+   * @brief Known values for Property specifying parameters regarding the kernel
+   * used to generate the Gaussians.
+   */
+  struct Kernel {
+    /** @brief `ellipse` */
+    inline static const std::string ellipse = "ellipse";
+  };
+
+  /**
+   * @brief Known values for Property specifying the color space of the
+   * spherical harmonics.
+   */
+  struct ColorSpace {
+    /** @brief `srgb_rec709_display` */
+    inline static const std::string srgb_rec709_display = "srgb_rec709_display";
+
+    /** @brief `lin_rec709_display` */
+    inline static const std::string lin_rec709_display = "lin_rec709_display";
+  };
+
   /**
    * @brief Known values for Optional property specifying how to project the
    * Gaussians to achieve a perspective correct value. This property defaults to
@@ -29,9 +50,6 @@ struct CESIUMGLTF_API ExtensionKhrGaussianSplatting final
   struct Projection {
     /** @brief `perspective` */
     inline static const std::string perspective = "perspective";
-
-    /** @brief `orthographic` */
-    inline static const std::string orthographic = "orthographic";
   };
 
   /**
@@ -41,40 +59,24 @@ struct CESIUMGLTF_API ExtensionKhrGaussianSplatting final
   struct SortingMethod {
     /** @brief `cameraDistance` */
     inline static const std::string cameraDistance = "cameraDistance";
-
-    /** @brief `zDepth` */
-    inline static const std::string zDepth = "zDepth";
   };
 
   /**
-   * @brief Known values for Optional property specifying the color space of the
-   * spherical harmonics. This property defaults to BT.709.
+   * @brief Property specifying parameters regarding the kernel used to generate
+   * the Gaussians.
+   *
+   * Known values are defined in {@link Kernel}.
+   *
    */
-  struct ColorSpace {
-    /** @brief `BT.709` */
-    inline static const std::string BT_709 = "BT.709";
-
-    /** @brief `BT.2020-ITU` */
-    inline static const std::string BT_2020_ITU = "BT.2020-ITU";
-
-    /** @brief `BT.2020-HLG` */
-    inline static const std::string BT_2020_HLG = "BT.2020-HLG";
-
-    /** @brief `BT.2020-PQ` */
-    inline static const std::string BT_2020_PQ = "BT.2020-PQ";
-
-    /** @brief `Display-P3` */
-    inline static const std::string Display_P3 = "Display-P3";
-
-    /** @brief `linear` */
-    inline static const std::string linear = "linear";
-  };
+  std::string kernel = Kernel::ellipse;
 
   /**
-   * @brief Optional property specifying parameters regarding the kernel used to
-   * generate the Gaussians. This property defaults to ellipse.
+   * @brief Property specifying the color space of the spherical harmonics.
+   *
+   * Known values are defined in {@link ColorSpace}.
+   *
    */
-  std::string kernel = "ellipse";
+  std::string colorSpace = ColorSpace::srgb_rec709_display;
 
   /**
    * @brief Optional property specifying how to project the Gaussians to achieve
@@ -94,15 +96,6 @@ struct CESIUMGLTF_API ExtensionKhrGaussianSplatting final
    */
   std::string sortingMethod = SortingMethod::cameraDistance;
 
-  /**
-   * @brief Optional property specifying the color space of the spherical
-   * harmonics. This property defaults to BT.709.
-   *
-   * Known values are defined in {@link ColorSpace}.
-   *
-   */
-  std::string colorSpace = ColorSpace::BT_709;
-
   /**
    * @brief Calculates the size in bytes of this object, including the contents
    * of all collections, pointers, and strings. This will NOT include the size
@@ -114,7 +107,7 @@ struct CESIUMGLTF_API ExtensionKhrGaussianSplatting final
     accum += int64_t(sizeof(ExtensionKhrGaussianSplatting));
     accum += CesiumUtility::ExtensibleObject::getSizeBytes() -
              int64_t(sizeof(CesiumUtility::ExtensibleObject));
-    accum += int64_t(this->kernel.capacity() * sizeof(char));
+
     return accum;
   }
 };
diff --git a/CesiumGltfReader/generated/src/ExtensionKhrGaussianSplattingJsonHandler.h b/CesiumGltfReader/generated/src/ExtensionKhrGaussianSplattingJsonHandler.h
index ec984a0ce..5e613160a 100644
--- a/CesiumGltfReader/generated/src/ExtensionKhrGaussianSplattingJsonHandler.h
+++ b/CesiumGltfReader/generated/src/ExtensionKhrGaussianSplattingJsonHandler.h
@@ -43,8 +43,8 @@ class ExtensionKhrGaussianSplattingJsonHandler
 private:
   CesiumGltf::ExtensionKhrGaussianSplatting* _pObject = nullptr;
   CesiumJsonReader::StringJsonHandler _kernel;
+  CesiumJsonReader::StringJsonHandler _colorSpace;
   CesiumJsonReader::StringJsonHandler _projection;
   CesiumJsonReader::StringJsonHandler _sortingMethod;
-  CesiumJsonReader::StringJsonHandler _colorSpace;
 };
 } // namespace CesiumGltfReader
diff --git a/CesiumGltfReader/generated/src/GeneratedJsonHandlers.cpp b/CesiumGltfReader/generated/src/GeneratedJsonHandlers.cpp
index 1cef212aa..57d2c2789 100644
--- a/CesiumGltfReader/generated/src/GeneratedJsonHandlers.cpp
+++ b/CesiumGltfReader/generated/src/GeneratedJsonHandlers.cpp
@@ -3007,9 +3007,9 @@ ExtensionKhrGaussianSplattingJsonHandler::
         const CesiumJsonReader::JsonReaderOptions& options) noexcept
     : CesiumJsonReader::ExtensibleObjectJsonHandler(options),
       _kernel(),
+      _colorSpace(),
       _projection(),
-      _sortingMethod(),
-      _colorSpace() {}
+      _sortingMethod() {}
 
 void ExtensionKhrGaussianSplattingJsonHandler::reset(
     CesiumJsonReader::IJsonHandler* pParentHandler,
@@ -3051,15 +3051,15 @@ CesiumJsonReader::IJsonHandler* ExtensionKhrGaussianSplattingJsonHandler::
   if ("kernel"s == str) {
     return property("kernel", this->_kernel, o.kernel);
   }
+  if ("colorSpace"s == str) {
+    return property("colorSpace", this->_colorSpace, o.colorSpace);
+  }
   if ("projection"s == str) {
     return property("projection", this->_projection, o.projection);
   }
   if ("sortingMethod"s == str) {
     return property("sortingMethod", this->_sortingMethod, o.sortingMethod);
   }
-  if ("colorSpace"s == str) {
-    return property("colorSpace", this->_colorSpace, o.colorSpace);
-  }
 
   return this->readObjectKeyExtensibleObject(objectType, str, *this->_pObject);
 }
diff --git a/CesiumGltfWriter/generated/src/ModelJsonWriter.cpp b/CesiumGltfWriter/generated/src/ModelJsonWriter.cpp
index 0252fafa3..ac7477f3d 100644
--- a/CesiumGltfWriter/generated/src/ModelJsonWriter.cpp
+++ b/CesiumGltfWriter/generated/src/ModelJsonWriter.cpp
@@ -1192,10 +1192,11 @@ void writeJson(
     const CesiumJsonWriter::ExtensionWriterContext& context) {
   jsonWriter.StartObject();
 
-  if (obj.kernel != "ellipse") {
-    jsonWriter.Key("kernel");
-    writeJson(obj.kernel, jsonWriter, context);
-  }
+  jsonWriter.Key("kernel");
+  writeJson(obj.kernel, jsonWriter, context);
+
+  jsonWriter.Key("colorSpace");
+  writeJson(obj.colorSpace, jsonWriter, context);
 
   if (obj.projection !=
       CesiumGltf::ExtensionKhrGaussianSplatting::Projection::perspective) {
@@ -1209,12 +1210,6 @@ void writeJson(
     writeJson(obj.sortingMethod, jsonWriter, context);
   }
 
-  if (obj.colorSpace !=
-      CesiumGltf::ExtensionKhrGaussianSplatting::ColorSpace::BT_709) {
-    jsonWriter.Key("colorSpace");
-    writeJson(obj.colorSpace, jsonWriter, context);
-  }
-
   writeExtensibleObject(obj, jsonWriter, context);
 
   jsonWriter.EndObject();