Examine source code of Fire_Sign

{
  "name": "Fire_Sign",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "26419684100w.gif"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(255, 119, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 119, 0, 1)",
      "toolbar_field": "rgba(168, 6, 0, 0.27)",
      "toolbar_field_text": "rgba(255, 119, 0, 1)",
      "tab_line": "rgba(255, 149, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{14f6c5c9-8b91-4cbc-9012-5c9e8691468b}"
    }
  }
}