diff --git a/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp b/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
index aeeb868c..f0e0755a 100644
--- a/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
+++ b/LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
@@ -325,6 +325,7 @@ void MxTransitionManager::MosaicTransition()
 					// For each of the 10 rows in the 10x10 square:
 					for (MxS32 k = 10 * row; k < 10 * row + 10; k++) {
 						if (ddsd.ddpfPixelFormat.dwRGBBitCount == 8) {
+							// Optimization: If the pixel is only one byte, we can use memset
 							MxU16* pos = (MxU16*) ((MxU8*) ddsd.lpSurface + k * ddsd.lPitch + xShift);
 							memset(pos, sample, 10);
 						}