It still doesn't look great.  Take a look at what I see when I zoom in on my deposit QR code:



The 'pixels' are all different shapes and sizes.  Even at 100% zoom it looks rough.  The concentric squares in the corners are meant to be symmetrical aren't they?



I wonder if you're using some non-integer pixel size, and we're seeing the effects of anti-aliasing?

Edit: Oh, and thanks for the tip!  By rewarding my bug-reporting habit you're only reinforcing it...