User blog comment:Kirkburn/Technical Update: August 31, 2016/@comment-1853435-20160901194933/@comment-1251315-20160901200352

I would rather prefer that the new diff styling be a user preference so those who don't like it don't have to resort to CSS hacks to get something resembling the old styling. The old styling is what I've seen for over 6 years and I've had no trouble with it. But the new styling literally made it impossible to see additions or removals so I had to use CSS to get back the old styling. If a user preference was provided to toggle between old and new, I would be happy. Also Special:Diff is a pointless page, it does exactly the same thing as just doing ?diff= in the url at the wiki homepage.