User blog comment:Kirkburn/Technical Update: August 31, 2016/@comment-1824272-20160903042357

I'll be the agreeing voice here - I had actually just used NewDiffStyle from the dev wiki to implement the new diff style on the Ace Combat wiki, and I'm glad to see Wikia backport it for native support. I will definitely agree that it doesn't look good on dark wikis - I had to modify NewDiffStyle to work on the Ace Combat wiki because it didn't natively support dark styles. The native support is appreciated through Wikia, but it definitely needs work.

I'll agree that having a personal option for the old style would help for the guys who prefer it, but it's definitely appreciated to have it on parity with other MediaWiki projects. It just looks better.