diff --git a/includes/pipeline/graphics.hpp b/includes/pipeline/graphics.hpp
index 04484a0..cd38419 100644
--- a/includes/pipeline/graphics.hpp
+++ b/includes/pipeline/graphics.hpp
@@ -9,6 +9,7 @@
 #include "xna/graphics/shared.hpp"
 
 namespace xna {
+	//Provides properties and methods for creating and maintaining a bitmap resource.
 	class BitmapContent : public ContentItem {
 	public:		
 		BitmapContent(int32_t width, int32_t height) {
@@ -79,6 +80,7 @@ namespace xna {
 		int32_t height{ 0 };
 	};
 
+	//Provides methods for maintaining a 2D array of pixel values.
 	template <typename T>
 	class PixelBitmapContent : public BitmapContent {
 	public:
diff --git a/includes/xna/content/serializer.hpp b/includes/xna/content/serializer.hpp
new file mode 100644
index 0000000..56538b0
--- /dev/null
+++ b/includes/xna/content/serializer.hpp
@@ -0,0 +1,17 @@
+#ifndef XNA_CONTENT_SERIALIZER_HPP
+#define XNA_CONTENT_SERIALIZER_HPP
+
+#include <string>
+
+namespace xna {
+	struct ContentSerializerAttribute {
+		std::string ElementName;
+		std::string CollectionItemName;
+		bool FlatternContent{ false };
+		bool Optional{ false };
+		bool AllowNull{ true };
+		bool SharedResource{ false };
+	};
+}
+
+#endif
\ No newline at end of file