When I first looked at this yesterday I was not understanding what the issue was. I tried working out the math of the discounts and didnt find anything odd about them. I just shrugged my shoulders and went on with my surfing.
Now that some other have piped in I see what the OP is possibly talking about but it's not really that big a deal to me. The different color "a" is so you can see it on the dark background it is printed on (notice the top left of the "n"). The "futuristic" pens are not that big a deal either because I've made a pen from a kit that looked very much like what is shown in the ad. I don't remember the name of the kit but I have attached a few pics.