Risk of confusion is the overall standard but that doesn't always mean what you think it does. In a case where it's two products competing in the same market (i

Risk of confusion is the overall standard but that doesn't always mean what you think it does. In a case where it's two products competing in the same market (i.e. two web frameworks, assuming that someone develops this into an actual framework), similarity of the marks is usually enough to establish risk of confusion. And generally, risk of confusion doesn't just mean that people will literally confuse the two products as identical. It's also about the risk that someone would think there is an affiliation or other connection between the two products. Finally, this would not be trade dress. It's about similarity of the product name, so just a plain trademark.