Examine source code of Country Perfect

{
  "name": "Country Perfect",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "CountryPerfectHCustom.jpg"
    },
    "colors": {
      "frame": "rgba(104, 143, 153, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(104, 142, 153, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(128, 179, 69, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{230b2155-8f71-414b-a0ee-640e0fc7452a}"
    }
  }
}