Examine source code of Eminem....

{
  "theme": {
    "images": {
      "theme_frame": "EminemHCustom.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Eminem....",
  "manifest_version": 2,
  "description": "Marshall Bruce Mathers III (born October 17, 1972)] better known by his stage name Eminem or his alter ego Slim Shady, is an American rapper, record producer, songwriter and actor. Bad Meets Evil,"
}