Examine source code of old country

{
  "name": "old country",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "strawberry.png"
    },
    "colors": {
      "frame": "rgba(146, 104, 82, 1)",
      "tab_background_text": "rgba(102, 23, 27, 1)",
      "toolbar": "rgba(243, 242, 231, 1)",
      "bookmark_text": "rgba(102, 23, 27, 1)",
      "toolbar_field": "rgba(183, 173, 142, 1)",
      "toolbar_field_text": "rgba(102, 23, 27, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{80a7d005-9ee4-44ef-9496-256b011a0064}"
    }
  }
}