Corrected entry: The first version of Central Perk's logo, seen from season 1, presents a perspective error on the right top corner of the left cup of coffee. Some seasons later, the logo receives a tiny correction in the same area, that makes the perspective "OK" to the eye. The cup line straightens up, and the steam is brought a little closer to the ribbon containing the name.
Gui Petrini
10th Feb 2018
Correction: It's not unusual for shops or business places to change their graphics. Not a mistake since the show takes place over 10 years.
Ssiscool ★