I don’t have a specific link to provide, but the colors of the parts of the line of code in the sample text are not accurately mimicked (at least on my Mac) in the code editor. This is true regardless of which class I’m working through.
As an example, when I put a field name in some of the SQL training in my code editor, it keeps the same light blue as the code before it. It does not turn white like the sample code until I add a second variable.
It’s a small thing, and does not affect me too badly because I have some experience with code and code syntax already. But, it might be confusing for true beginners.