While some decisions in the world of animation are precisely calculated from a project's infancy, other decisions are made on the fly and become defining components of a series. In the case of Nickelodeon's The Fairly OddParents, Timmy wore an iconic pink hat, which often subjected him to ridicule throughout the series' 10 seasons. According to creator Butch Hartman, the only reason he wore a pink hat was because he ran out of blue ink.

Hartman had previously revealed the anecdote, though, when replying to Paris Hilton's request to tell her something she didn't know, the show creator reiterated the fact. He also shared the original design for Timmy, which featured his planned blue hat.

He also noted that Wanda's hair in the series was intended to be blue, only to be replaced with pink for the same reason as Timmy's hat.

Fans familiar with the series had a hard time grasping the notion that a signature characteristic was the result of an improvised solution, leading users on Twitter to share a variety of passionate reactions.

Scroll down to see how fans reacted to this Fairly OddParents reveal!