Examine source code of Ascii2dImageSearch

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "6.0.1",
  "author": "ascii2d.net",
  "default_locale": "en",
  "icons": {
    "48": "icons/niji.png"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "activeTab",
    "https://ascii2d.net/"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{949a409b-772b-44af-89a3-180282877d3a}"
    }
  }
}