Examine source code of squid ninja

{
  "theme": {
    "images": {
      "theme_frame": "squidninjapersonanew.jpg"
    },
    "colors": {
      "frame": "#464746",
      "tab_background_text": "#eae6f2"
    }
  },
  "version": "2.0",
  "name": "squid ninja",
  "manifest_version": 2,
  "description": "squid ninja persona for one of my friends...mostly just squids tho\nit looked so much better when it was at original size, but then I had to change it to fit the browser :\\"
}