Examine source code of Ciel 1

{
  "name": "Ciel 1",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "fd a.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dfbb091e-74b8-4081-b1fa-9a868f2e0c38}"
    }
  }
}