Examine source code of LC_Difficulty_Eliminator

{
  "manifest_version": 2,
  "name": "LC_Difficulty_Eliminator",
  "version": "1.1",
  "description": "Hides the difficulty of problems on Leetcode.",
  "homepage_url": "https://github.com/akhil-sharma/lc_difficulty_eliminator",
  "icons": {
    "48": "icons/leetcode_difficulty_eliminator_48.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.leetcode.com/*"
      ],
      "js": [
        "index.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d92039db-cd19-46c6-9a7b-9586ffc4a118}"
    }
  }
}