Examine source code of Cat fan

{
  "theme": {
    "images": {
      "theme_frame": "catfanfin4.jpg"
    },
    "colors": {
      "frame": "#bdada2",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Cat fan",
  "manifest_version": 2,
  "description": "bird fish mouse ball bow ribbon eye black toys cat cats girlie love cubs sweet small kittens nature feline green eye brown green blue pink yellow funny artistic art work original design nature animals house floor deck inside playful boy girl curly writing text shadow paper clip paws pet abstract Real.Twilight"
}