Examine source code of Kraken

{
  "theme": {
    "images": {
      "theme_frame": "FirefoxKraken1.JPG"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Kraken",
  "manifest_version": 2,
  "description": "This is the roller coaster Kraken at Sea World Orlando.\n\nTags: Roller Coaster - Kraken - Sea World - Orlando - Floorless"
}