Examine source code of kewl beans

{
  "name": "kewl beans",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "005-dark-texture.jpg"
    },
    "colors": {
      "frame": "rgba(43, 44, 46, 1)",
      "tab_background_text": "rgba(117, 11, 29, 1)",
      "toolbar": "rgba(77, 77, 77, 1)",
      "bookmark_text": "rgba(166, 15, 45, 1)",
      "toolbar_field": "rgba(43, 44, 46, 1)",
      "toolbar_field_text": "rgba(181, 177, 178, 1)",
      "tab_line": "rgba(166, 15, 45, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{88914306-a526-4e3c-b895-d947f432575e}"
    }
  }
}