Taking a cue from his mentor, The X-Files creator Chris Carter – who would often work in the name of his production company (and birthday), “Ten Thirteen,” into episodes of the classic series – Breaking Bad executive producer revealed that Skyler’s sister, Marie, has a penchant for purple. In an interview with The Vulture at NYMag.com, Gilligan said: “We decided that Skyler’s sister Marie should love the color purple, and indeed everything she wears and everything she accents her home with is purple… Color is important on Breaking Bad; we always try to think in terms of it. We always try to think of the color that a character is dressed in, in the sense that it represents on some level their state of mind.” Gilligan also pointed out that, in a nod to his days as a writer for The X-Files, there will be a reference to “10-13” in the first episode of Breaking Bad’s upcoming fourth season.