Examine source code of features colorful balloon

{
  "name": "b758794265929de723ee5fd1264b0c34",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "b758794265929de723ee5fd1264b0c34.jpg"
    },
    "colors": {
      "frame": "rgba(232, 233, 235, 0.08)",
      "tab_background_text": "rgba(255, 250, 250, 1)",
      "toolbar": "rgba(0, 0, 0, 0.24)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.1)",
      "toolbar_field_text": "rgba(245, 245, 245, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{221faab8-45ee-4888-a3f2-440b2cc483fe}"
    }
  }
}