That's a good point. I've now linked the image so you can see it at full resolution.
But, I have to say, even when displayed full screen, I can barely make out a difference. Where I can see a slight change, I'd be hard pressed to say which is better - the cog design for instance. Why is one better than the other?
I appreciate attention to detail, both in code and design. But this isn't the case of a jerky animation, or hideously missized buttons (i.e. a bug) this is literally a couple of pixels that I don't think most people will notice.
Or do I need to get my eyes tested?