User blog comment:Mobo85/Hot off the Presses: "Across the Second Dimension" Debuts August 5/@comment-753210-20110608014128/@comment-24.185.169.237-20110609183747

It's possible it could've just been a coloring glitch, or something like that. Because in some of the captions, they are the same skin tone as regular Phineas & Ferb.