Examine source code of Fantasy Draft Helper

{
  "manifest_version": 2,
  "name": "Fantasy Draft Helper",
  "version": "1.2.0",
  "description": "Enhance fantasy football drafts with custom tiers/rankings and real-time insights displayed on draft boards.",
  "permissions": [
    "storage",
    "https://fantasy.espn.com/football/draft*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icons8-american-football-64.png"
  },
  "web_accessible_resources": [
    "upload.html"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://fantasy.espn.com/football/draft*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6ed12e07-3cb0-4f4c-b1ba-27eb363c6c83}"
    }
  }
}