Examine source code of old yellow car

{
  "theme": {
    "images": {
      "theme_frame": "old-yellow-car-ani.png"
    },
    "colors": {
      "frame": "#dffc00",
      "tab_background_text": "#ff0303"
    }
  },
  "version": "2.0",
  "name": "old yellow car",
  "manifest_version": 2,
  "description": "old yellow car animated"
}