Toblerowing's Triangular Box

A trademark to me seems like it really should be a thing that is on or integral to the packaging of the product. So you can only see the wrapping of the Kit-Kat bar, and then however it looks on the inside, I feel like, no, that doesn't count towards the trademark. It's like Chick-fil-A in the south: They're a terrible company, but your milkshakes are so delicious. But they're Kit-Kat four bars.