Examine source code of Bad Wolf

{
  "theme": {
    "images": {
      "theme_frame": "BWPerBG.png"
    },
    "colors": {
      "frame": "#00085e",
      "tab_background_text": "#999999"
    }
  },
  "version": "2.0",
  "name": "Bad Wolf",
  "manifest_version": 2,
  "description": "Hey, someone spray-painted Bad Wolf on my browser!"
}