I'm trying to set up Photoshop cc 2014 for pixel art graphics, but I have this weird issue where my pixels don't align to the grid. I can't work out if it's my pencil which is creating pixels too big, or the grid is somehow wrong. I've set the grid to 1:1 so I'm not sure how that could be any different.
Any ideas what I'm doing wrong?
I'm on a Mac if that makes any difference.