That's How It Happened

In among all the hype about the new size, new style Guardian (or should that be guardian), something simultaneously revolutionary and retro happened on page page 13 (larger clearer pdf). Scattered through the text are key phrases, both underlined and coloured blue. These "links" lead to a small glossary box in the lower right corner. This seems like html adapted for the page, but strangely these "dead tree links" haven't been translated into actual html links, on the matching Guardian Unlimited page. Even stranger, to my eye at least, is that the blue of the links doesn't match the blue used for links on Guardian Unlimited. Instead it looks like the same blue that links used to be in Mosaic. How retro is that?