Examine source code of sammy the siamese

{
  "theme": {
    "images": {
      "theme_frame": "blackandwhitekitties8.jpg"
    },
    "colors": {
      "frame": "#918888",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "sammy the siamese",
  "manifest_version": 2,
  "description": "black and white photos of a siamese with blue eyes"
}