You've probably seen some of the ads for the new Apple TV - whether on billboards or TV - all of which feature some variation on this design:
Screenshot/Apple
Not only is this a colorful, eye-catching play on the famous SMPTE "color bars" pattern used to calibrate TVs since the 1970's - it's also a clever callback to Apple history.
From 1977 all the way to 1999, Apple's logo was a little more colorful than the one we're familiar with today. Here's the old logo:
Wikimedia Commons
Now, compare those colors above to the Apple TV promo design (Hint: They're exactly the same).
It's a callback to an important era in Apple's early history. For a long time, the so-called "Six Colors" logo design was an important part of Apple's culture.
Back in the early nineties, Apple was in bad shape, bleeding money, share value, and leadership.
Steve Jobs once said that when he came back to Apple in 1997, he was shocked that any employee was still there. But when he asked these engineers why they stuck with Apple, even through the hard times, they all had the same answer: "Because I bleed in six colors."
You can watch Jobs discuss that time of Apple's history here: