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manifest.json
{
  "name": "Pop out",
  "description": "ポップアウト",
  "action": {
    "default_title": "Po",
    "default_icon": {
      "19": "action/default_icon/19.png"
    }
  },
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "version": "1.3.0.6",
  "manifest_version": 3,
  "background": {
    "service_worker": "background/service_worker/event.js"
  },
  "permissions": [
    "contextMenus"
  ],
  "update_url": "https://clients2.google.com/service/update2/crx"
}