Examine source code of Hide Google Meet Buttons

{
  "name": "hide-meet",
  "version": "0.0.2",
  "manifest_version": 2,
  "description": "Hide Google Meet information in Gmail and Google Calendar",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "https://mail.google.com/*",
    "https://calendar.google.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/*",
        "https://calendar.google.com/*"
      ],
      "css": [
        "src/inject/inject.css"
      ]
    }
  ]
}