I think I'm not getting it. How do you copy the code? I can't select more than one line, and when I copy that line I can't past it into Xcode. If I right click on the whole block and choose copy, I can't paste that anywhere either.
I managed to select the ColorsContentView struct, and I copied it. Here's what I was finally able to get: https://developer.apple.com/wwdc21/10176
i.e., not the code.