Examine source code of Fall In Ontario

{
  "name": "Fall In Ontario",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "P1030313F (Custom).jpg"
    },
    "colors": {
      "frame": "rgba(173, 16, 37, 1)",
      "tab_background_text": "rgba(250, 240, 240, 1)",
      "toolbar": "rgba(250, 107, 18, 1)",
      "bookmark_text": "rgba(247, 237, 49, 1)",
      "toolbar_field": "rgba(22, 143, 20, 1)",
      "toolbar_field_text": "rgba(5, 46, 19, 1)",
      "tab_line": "rgba(245, 231, 231, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d6160b65-2f31-428d-b03b-553a6badc67c}"
    }
  }
}