Examine source code of Anki Quick image

{
  "manifest_version": 3,
  "name": "Anki Quick image",
  "version": "0.20",
  "description": "Simple browser extension to instantly add an image to your last created anki card.",
  "icons": {
    "48": "icons/icon.png"
  },
  "host_permissions": [
    "*://*.bing.com/"
  ],
  "permissions": [
    "storage"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "options_ui": {
    "page": "options/options.html"
  },
  "action": {
    "default_icon": "icons/icon.png",
    "default_title": "Quick image",
    "default_popup": "popup/quick-image.html"
  },
  "background": {
    "scripts": [
      "content_scripts/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ankiquickimage@zxy101.com",
      "strict_min_version": "58.0"
    },
    "gecko_android ": {
      "id": "ankiquickimage@zxy101.com",
      "strict_min_version": "58.0"
    }
  }
}