Examine source code of Soccer

{
  "theme": {
    "images": {
      "theme_frame": "2soccerfirefox.jpg"
    },
    "colors": {
      "frame": "#063ab3",
      "tab_background_text": "#063ab3"
    }
  },
  "version": "2.0",
  "name": "Soccer",
  "manifest_version": 2,
  "description": "Soccer you got to love it :)"
}