The ones on the wiki are my fault; I attempted some time ago to do some image processing to get them to read better.
(Also, I'm affronted that someone perceives the quality to be that different. They're aliased differently, that's for sure, but they also have less yellow smearing of details. The biggest issue is that they're not the same size and so didn't translate perfectly in-place.)
Anyway. That's not an issue with the upgrade, and will be addressed with the new wiki anyhow.