Examine source code of Snowy Fox

{
  "theme": {
    "images": {
      "theme_frame": "lone-foxgood.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#050721"
    }
  },
  "version": "2.0",
  "name": "Snowy Fox",
  "manifest_version": 2,
  "description": "A red fox in the snow"
}