Examine source code of Garfield & Jon ANIMATED

{
  "theme": {
    "images": {
      "theme_frame": "Garfield-and-Jon-head.png"
    },
    "colors": {
      "frame": "#b5b1b1",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Garfield & Jon ANIMATED",
  "manifest_version": 2,
  "description": "Garfield thinks Jon has been at the catnip again,\nAnimation on light blue background with black text.\nEnjoy."
}