Examine source code of Fantastic Fall Foliage

{
  "name": "Fantastic Fall Foliage",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "FantasticFallFoliageH.jpg"
    },
    "colors": {
      "frame": "rgba(234, 234, 234, 1)",
      "tab_background_text": "rgba(28, 1, 1, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(28, 1, 1, 1)",
      "toolbar_field": "rgba(235, 230, 230, 0.08)",
      "toolbar_field_text": "rgba(26, 1, 1, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{754c88ac-79c0-4235-a4f4-f3eae00f0640}"
    }
  }
}