Examine source code of TIMOCOM Plugin

{
  "manifest_version": 3,
  "name": "TIMOCOM",
  "version": "0.1.4",
  "description": "TIMOCOM",
  "icons": {
    "16": "icons/timo_icon_16.png",
    "32": "icons/timo_icon_32.png",
    "48": "icons/timo_icon_48.png",
    "128": "icons/timo_icon_128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "support@timocom.com",
      "strict_min_version": "110.0"
    }
  },
  "action": {
    "default_title": "TIMOCOM",
    "default_popup": "popup.html"
  },
  "permissions": [],
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*"
      ],
      "run_at": "document_idle",
      "css": [
        "gmail.css"
      ],
      "js": [
        "gmailContentScript.js"
      ]
    },
    {
      "matches": [
        "https://outlook.office.com/*"
      ],
      "run_at": "document_idle",
      "css": [
        "outlook.css"
      ],
      "js": [
        "outlookContentScript.js"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self';"
  }
}