Examine source code of Blue_Planet

{
  "theme": {
    "images": {
      "theme_frame": "jpghead.jpg"
    },
    "colors": {
      "frame": "#999999",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Blue_Planet",
  "manifest_version": 2,
  "description": "A single blue planet makes up the upper right corner, with a starlight view on the bottom. This persona captures the beauty of space, along with the mystery/loneliness of a \"Blue Planet\"."
}