Examine source code of Big Blue Button Autostatus

{
  "manifest_version": 2,
  "name": "Big Blue Button Autostatus",
  "version": "1.2.1",
  "author": "Christopher Besch",
  "description": "BBB Tools preventing the teacher to detect that you aren't actually listening",
  "homepage_url": "https://github.com/christopher-besch/bbb_autostatus",
  "permissions": [
    "notifications",
    "tabs",
    "storage"
  ],
  "background": {
    "page": "out/background.html",
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.bigbluebutton.org/*",
        "*://*.videoconference.iserv.eu/*"
      ],
      "js": [
        "out/content.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "out/popup.html"
  },
  "icons": {
    "48": "out/icons/flutter_dash_black_24dp.svg",
    "96": "out/icons/flutter_dash_black_24dp.svg"
  },
  "options_ui": {
    "page": "out/options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "bbb_autostatus_dist@christopher-besch"
    }
  },
  "commands": {
    "toggle-raise": {
      "suggested_key": {
        "default": "Ctrl+Q"
      },
      "description": "Toggle raised hand"
    }
  }
}