Examine source code of Rising Alien Sun

{
  "theme": {
    "images": {
      "theme_frame": "maskabstractsun_1.jpeg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Rising Alien Sun",
  "manifest_version": 2,
  "description": "Alien Sun rising in the east.  Bright orange beams of light shoot out and you see the sun has a alien gas mask floating in the middle of its rays."
}