Examine source code of Copy Leetcode Problem

{
  "manifest_version": 2,
  "name": "Copy Leetcode Problem",
  "version": "1.1",
  "description": "Easily copy the current LeetCode problem description to your clipboard.",
  "icons": {
    "64": "icons/copy.png"
  },
  "homepage_url": "https://github.com/Koruto/Leetcode-QuestionClip",
  "permissions": [
    "activeTab",
    "tabs",
    "clipboardWrite"
  ],
  "browser_action": {
    "default_icon": "icons/copy.png",
    "default_title": "Copy problem!"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f5a5170a-a73b-47bd-9fd5-f9fb7b5d74f0}"
    }
  }
}