Examine source code of Influence4You

{
  "name": "Influence4You",
  "version": "1.2.4",
  "manifest_version": 2,
  "short_name": "I4Y",
  "description": "Access influencer stats and audience analytics directly on Instagram, TikTok, YouTube and Twitch accounts.",
  "icons": {
    "128": "img/icon.png"
  },
  "content_security_policy": "connect-src 'self' https://*.influence4you.com; script-src 'self'; object-src 'self';img-src 'self' https://*.influence4you.com;",
  "permissions": [
    "webRequest",
    "activeTab",
    "unlimitedStorage",
    "storage",
    "cookies",
    "tabs",
    "*://*.instagram.com/",
    "https://*.influence4you.com/",
    "https://*.amazonaws.com/"
  ],
  "web_accessible_resources": [
    "img/icon.png",
    "assets/images/*",
    "assets/fonts/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.instagram.com/*",
        "https://www.youtube.com/channel/*",
        "https://www.youtube.com/user/*",
        "https://www.youtube.com/@*",
        "https://www.tiktok.com/@*",
        "https://www.twitch.tv/*"
      ],
      "js": [
        "src/content/main.js",
        "src/content/influencer.js",
        "src/content/user.js",
        "src/content/view.js",
        "src/content/navbar.js",
        "src/content/data.js",
        "src/content/utils.js",
        "src/content/lists.js",
        "src/content/castings.js",
        "src/content/tags.js",
        "src/content/themes.js",
        "assets/crypto-js.min.js"
      ],
      "css": [
        "assets/css/main.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "i4yffextension@release.i4y",
      "strict_min_version": "58.0"
    }
  },
  "default_locale": "fr",
  "background": {
    "scripts": [
      "src/background/background.js"
    ],
    "persistent": false
  }
}