Examine source code of Fluff Kitten

{
  "theme": {
    "images": {
      "theme_frame": "CuteJasper.jpg"
    },
    "colors": {
      "frame": "#d9cccc",
      "tab_background_text": "#2eab5e"
    }
  },
  "version": "2.0",
  "name": "Fluff Kitten",
  "manifest_version": 2,
  "description": "Please wear Cute Jasper on your browser!! He's lonely."
}