Examine source code of Sea Colors

{
  "theme": {
    "images": {
      "theme_frame": "Sea_colors_top.jpg"
    },
    "colors": {
      "frame": "#c9c9c9",
      "tab_background_text": "#ffffcc"
    }
  },
  "version": "2.0",
  "name": "Sea Colors",
  "manifest_version": 2,
  "description": "You wouldn't guess it but this is a close-up of a sand pattern on the sea floor as seen from a small airplane while flying over the Strait of Georgia into Vancouver. It ends up being a calm and non-distracting Persona."
}