Examine source code of StudentsList

{
  "manifest_version": 2,
  "name": "StudentsList",
  "version": "1.0",
  "description": "record the students' names in the meeting then export the list to excel file",
  "icons": {
    "48": "ico.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "ico.png",
    "default_title": "click here"
  },
  "permissions": [
    "activeTab",
    "alarms"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://meet.google.com/*"
      ],
      "js": [
        "WE.js"
      ]
    }
  ]
}