Examine source code of Graderoom

{
  "name": "Graderoom",
  "description": "Graderoom extension",
  "version": "1.6.1",
  "manifest_version": 3,
  "action": {
    "default_icon": "icon.png"
  },
  "host_permissions": [
    "https://powerschool.bcp.org/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.graderoom.me/*"
      ],
      "js": [
        "content.js"
      ]
    },
    {
      "matches": [
        "https://*.graderoom.me/*"
      ],
      "js": [
        "presence.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "declarativeNetRequest"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@graderom.me",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}