Examine source code of LeetFriends

{
  "description": "Opens up a panel which displays LeetCode users you follow. Follow friends to see their real-time statistics, all in one place.",
  "manifest_version": 3,
  "name": "LeetFriends",
  "version": "1.9",
  "homepage_url": "https://github.com/ericanderson2/leet-friends",
  "icons": {
    "48": "icons/leet-friends-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "leetfriends@leetfriendsgaming.com"
    }
  },
  "permissions": [
    "storage",
    "notifications"
  ],
  "host_permissions": [
    "https://leetcode.com/graphql"
  ],
  "action": {
    "default_icon": "icons/leet-friends-32.png",
    "theme_icons": [
      {
        "light": "icons/leet-friends-32-light.png",
        "dark": "icons/leet-friends-32.png",
        "size": 32
      }
    ],
    "default_title": "LeetFriends",
    "default_popup": "popup/leet_friends.html"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/*.png"
      ],
      "matches": []
    }
  ],
  "background": {
    "service_worker": "scripts/background.js",
    "scripts": [
      "scripts/background.js"
    ]
  }
}