By MARK KENNEDY, AP Entertainment Writer

NEW YORK (AP) — The beloved cartoon duo Phineas and Ferb are returning for new episodes this summer after a decade away and pretty much nothing has changed. Except maybe one thing.

“The more observant of you will notice Phineas’ shirt has one extra stripe,” says co-creator Jeff “Swampy” Marsh. Dan Povenmire, Marsh’s creative partner, adds: “He hasn’t actually gotten any taller, but we’re giving him the illusion of getting taller.”

Other than a fourth stripe on Phineas’s orange-and-white T-shirt, “Phineas and Ferb” returns with all the characters that Gen Z viewers so adored, including Perry the Platypus, the mad scientist Dr. Doofenshmirtz, the easily excitable older sister Candace and the bully Buford.

“We were a little worried at first, like a

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