Examine source code of Let the Bubbles Loose

{
  "name": "Let the Bubbles Loose",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "LettheBubblesLooseH.jpg"
    },
    "colors": {
      "frame": "rgba(150, 202, 252, 1)",
      "tab_background_text": "#000000",
      "toolbar": "rgba(153, 202, 255, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(148, 198, 252, 0.08)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b044a46f-e623-46ce-a9cc-0cfc9302ee1b}"
    }
  }
}