Examine source code of WordleGrade

{
  "description": "A web extension for grading a game of wordle based on Informaiton gain",
  "author": "Samvel Hovhannisyan",
  "manifest_version": 3,
  "name": "WordleGrade",
  "version": "2.0",
  "homepage_url": "https://github.com/SamvelHov02/WordleGrade",
  "browser_specific_settings": {
    "gecko": {
      "id": "wordlegrade@samvelhov02.github.io",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    },
    "default_title": "WordleGrade",
    "default_popup": "popup/choose_metric.html"
  },
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.nytimes.com/games/wordle/*"
      ],
      "js": [
        "grade.js",
        "tab.js"
      ],
      "css": [
        "tab.css"
      ]
    }
  ]
}