diff --git a/include/Spectre/Graphics/PixelFormat.h b/include/Spectre/Graphics/PixelFormat.h
index c46c0f9..8eda43d 100644
--- a/include/Spectre/Graphics/PixelFormat.h
+++ b/include/Spectre/Graphics/PixelFormat.h
@@ -8,7 +8,9 @@ enum PixelFormat
 	PF_Unknown	= 0,
 	PF_RGB		= 1,
 	PF_RGBA		= 2,
-	PF_Alpha	= 3,	// 1 byte alpha channel.
+	PF_32BGR	= 3,	// 32 bits per pixel, 8 bits are used for blue, green, red. Last 8 bits are unused.
+	PF_32BGRA	= 4,	// 32 bits per pixel, 8 bits are used for blue, green, red, alpha.
+	PF_Alpha	= 5,	// 8 bit alpha channel.
 };
 
 } // namespace