Examine source code of LeetCode Ranks

{
  "manifest_version": 3,
  "name": "LeetCode Ranks",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "https://leetcode.com/u/*"
      ],
      "js": [
        "Content.js",
        "badge.js"
      ]
    }
  ],
  "icons": {
    "16": "ExtensionIcon.png",
    "32": "ExtensionIcon.png",
    "48": "ExtensionIcon.png",
    "128": "ExtensionIcon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "com.nuggets10.leetcoderanks@addons.mozilla.org",
      "strict_min_version": "109.0"
    }
  }
}