premise: The Feed icon is for indicating that a web feed is available on a web page. It was originally invented for the use of RSS, but it is also common for Atom and other web feeds now. The icon is normally orange, with hex code #FA9B39. The original icon was created by Stephen Horlander, a designer at Mozilla.
hypothesis: The Feed icon was created by a team of 3 people.
reason: Context states "The original icon was created by Stephen Horlander, a designer at Mozilla." My statement said it was "designed by 3 people". Clearly according to the context that is incorrect. Don't know why the AI got it wrong.