Examine source code of Aquarium Shark

{
  "theme": {
    "images": {
      "theme_frame": "Aquarium3.jpg"
    },
    "colors": {
      "frame": "#d6d3d3",
      "tab_background_text": "#faf5f5"
    }
  },
  "version": "2.0",
  "name": "Aquarium Shark",
  "manifest_version": 2,
  "description": "Picture of shark and fish in Florida Aquarium in Tampa Florida."
}