Examine source code of fish without name

{
  "theme": {
    "images": {
      "theme_frame": "aquafish.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#0d252b"
    }
  },
  "version": "2.0",
  "name": "fish without name",
  "manifest_version": 2,
  "description": "沖縄ちゅら海水族館の魚たちです。\nThis is Okinawa Aquarium's fishes."
}