Examine source code of cloudystorms

{
  "name": "cloud",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "clouds.jpg"
    },
    "colors": {
      "frame": "rgba(133, 158, 217, 1)",
      "tab_background_text": "rgba(15, 3, 3, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a950d48-5633-4427-8082-9a7cd4374765}"
    }
  }
}