Bartosz Kosiorek (@gang65) commented about dlls/gdiplus/tests/image.c:
{ 1.0, PixelOffsetModeHighQuality, image_100 }, { 1.2, PixelOffsetModeHighQuality, image_120_half, TRUE }, { 1.5, PixelOffsetModeHighQuality, image_150_half, TRUE },
{ 1.8, PixelOffsetModeHighQuality, image_180 },
{ 1.8, PixelOffsetModeHighQuality, image_180_half, TRUE },
After test update, it is visible difference between PixelOffsetMode None and Half.