Examine source code of Beautiful Danger

{
  "name": "Beautiful Danger",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "BeautifuldangerHCustom.jpg"
    },
    "colors": {
      "frame": "rgba(46, 27, 3, 0.82)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(48, 29, 3, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(48, 29, 3, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b8311818-080b-46b7-b77a-0c9273210670}"
    }
  }
}