Taking permissively licensed open source code without so much of an attribution obviously sucks, but I can’t quite see the evidence that this is a fork? Same co

Taking permissively licensed open source code without so much of an attribution obviously sucks, but I can’t quite see the evidence that this is a fork? Same concept, sure. Code generated is similar but different enough, and there aren’t really many ways to express the similar bits... Interface isn’t exactly breakthrough either, anyone would have used a textarea + buttons. (Only looked at the screenshots.) Can someone check the source code of the extension? (It's certainly weird that 30+ comments in, everyone else is taking sides without even questioning the IMO not terribly well supported premise.) Edit: Okay, judging from NOTICES.txt it is.