Examine source code of Easy TweetBlock

{
  "manifest_version": 3,
  "name": "Easy TweetBlock",
  "version": "0.1.0",
  "description": "Block unwanted users on X and Twitter with one click.",
  "icons": {
    "16": "assets/extension/16.png",
    "32": "assets/extension/32.png",
    "48": "assets/extension/48.png",
    "128": "assets/extension/128.png"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://abs.twimg.com/*",
    "https://x.com/*",
    "https://twitter.com/*"
  ],
  "action": {
    "default_title": "Easy TweetBlock",
    "default_icon": {
      "16": "assets/extension/16.png",
      "32": "assets/extension/32.png",
      "48": "assets/extension/48.png"
    },
    "default_popup": "src/popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://x.com/*",
        "https://twitter.com/*"
      ],
      "run_at": "document_idle",
      "css": [
        "src/content/main.css"
      ],
      "js": [
        "src/shared/storage.js",
        "src/shared/settings.js",
        "src/shared/followers.js",
        "src/shared/normalization.js",
        "src/shared/usernames.js",
        "src/shared/identity.js",
        "src/shared/x-platform.js",
        "src/shared/follower-candidates.js",
        "src/shared/username-lists.js",
        "src/content/shared.js",
        "src/shared/blocklist.js",
        "src/shared/follower-scan-session.js",
        "src/shared/follower-scan-controller.js",
        "src/content/x-client-transaction.js",
        "src/content/features.js",
        "src/content/api.js",
        "src/content/dom.js",
        "src/content/main.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "easy-tweetblock@catgirl3d.github.io",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteActivity",
          "websiteContent"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "src/background/background-firefox.js"
    ]
  }
}