Sorry in advance if this has been posted before. I suck at internetting.
Frank behind the sunshine here is just a cog masking an image (of Frank).Very simple. If you click that picture you can see that Franks hammer isn't quite flush to the edge of the cog. You can see that there is a slight pink edge where his hammer is revealed through the mask. It is especially pronounced where colours contrast.
You can see here the printer makes damn sure that you clearly see a fault in the design.
Also when using a guide to snap an object to line up, it should, you know... line up. Let's take the guide away:
So what I'm asking is... a few things; Is there something I'm doing wrong? If not, is there a kind of practice to follow when designing? (eg. use pixels as measurements and snap, size and move objects by whole pixels?) Is it because I'm designing on a (god forbid) PC? Is it something to do with the aliasing on my graphics card interfering with the program? Is it the zoom?