Examine source code of Beautiful Reflection

{
  "name": "Beautiful Reflection",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "1.jpg"
    },
    "colors": {
      "frame": "rgba(14, 15, 9, 1)",
      "tab_background_text": "rgba(245, 237, 237, 1)",
      "toolbar": "rgba(14, 15, 9, 0)",
      "bookmark_text": "rgba(242, 233, 233, 1)",
      "toolbar_field": "rgba(14, 15, 9, 0.08)",
      "toolbar_field_text": "rgba(250, 240, 240, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1845a060-e300-4c42-9fff-b1ccace4ea1c}"
    }
  }
}