The "classic" one had days older than 7 (or 10) fade from black to light grey, but still be thick type. After another 7 (or 10) days the text for that date was presented in ordinary type. So 4 categories in total: today, last week (or 10 days), last 2 weeks (or 20 days), and older.
Could you quote an example of this please?
It looks to me like he was just showing positions 11 through 20 in a faded out color, like this:
9. 2013-02-16 W. Avg: 27.16
10. 2013-02-15 W. Avg: 26.99
11. 2013-02-18 W. Avg: 26.76
12. 2013-02-17 W. Avg: 26.40
Note how #11 is newer than #10, but is faded out because it's not in the top 10.