20 Mind-Blowing Facts You Never Knew About The Big Bang Theory
15. Mood T-Shirts
This one is a bit of a hidden gem from the writers to the fans, and pretty easy to overlook. You know those Green Lantern t-shirts that Sheldon is always wearing? Well they actually mean something. Whatever the colour of the t-shirt Sheldon has on has a corresponding emotion attached to it in the comic universe. In that world, red stands for rage, blue is for hope, indigo is for passion and so on and so forth. So next time you see Sheldon wearing a specific colour t-shirt in the show, its almost certain to be a clue for his emotions during that scene.
