Examine source code of Airplane cabin

{
  "name": "Cabine(2)",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Cabine_resized.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(166, 78, 22, 1)",
      "bookmark_text": "rgba(166, 78, 22, 1)",
      "toolbar_field": "rgba(1, 2, 41, 1)",
      "toolbar_field_text": "rgba(3, 87, 53, 1)",
      "tab_line": "rgba(5, 1, 7, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fc704415-288c-4dbc-9b06-5410fc32f3d5}"
    }
  }
}