Examine source code of eClass confetti

{
  "name": "eClass confetti",
  "description": "Display a shower of confetti when submitting assignments and quiz",
  "version": "0.0.7",
  "manifest_version": 3,
  "action": {
    "default_title": "eClass confetti",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://eclass.srv.ualberta.ca/*"
      ],
      "js": [
        "content.js",
        "confetti.js"
      ]
    }
  ],
  "icons": {
    "16": "res/icon/16x16.png",
    "32": "res/icon/32x32.png",
    "192": "res/icon/192x192.png",
    "512": "res/icon/512x512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bb3b0d84-c4be-447a-9322-a3849d81151a}"
    }
  }
}