Examine source code of Missy Grayban

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header.jpg"
    },
    "colors": {
      "frame": "#333333",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Missy Grayban",
  "manifest_version": 2,
  "description": "My cat Missy. I know it isn't pretty as this is my first persona but she was my favourite cat and I miss her very much so while I am browsing or reading the news I can see her in my Firefox.."
}