Examine source code of Odoo Debug Pro

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Odoo Debug Pro",
  "version": "1.1",
  "description": "Toggle Odoo's ?debug=1 mode with one click. The toolbar monkey covers its eyes when debug is off and watches when it's on.",
  "permissions": [
    "tabs"
  ],
  "action": {
    "default_title": "Click to toggle Odoo Debug Mode",
    "default_icon": {
      "16": "icons/eyes-covered-16.png",
      "48": "icons/eyes-covered-48.png",
      "128": "icons/eyes-covered-128.png"
    }
  },
  "icons": {
    "16": "icons/eyes-covered-16.png",
    "48": "icons/eyes-covered-48.png",
    "128": "icons/eyes-covered-128.png"
  },
  "background": {
    "service_worker": "background.js"
  }
}