I'd suspect maybe a transcription error from a voice recorder.
...for that instead of getting them young before their color comes in, you have to get them older AFTER their color departs.
...to make available a single corrected press in page to replace that one for anyone who chooses to file for it. They come with adhesive on the back edge and you cut the replaced page leaving enough along binder to paste the replacement in. If they've not sold them yet, then can be done at the publisher.
Now this would be quite a marketing twist used for selling that particular book. Would you prefer your leather bound book in bleached white, light tan, or black?