Examine source code of Adblock Undetector

{
  "manifest_version": 3,
  "name": "Adblock Undetector",
  "version": "1.0.1",
  "description": "Blocks adblock detectors on websites.",
  "permissions": [
    "storage",
    "tabs",
    "declarativeNetRequest"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://mail.google.com/*",
        "*://drive.google.com/*",
        "*://docs.google.com/*",
        "*://sheets.google.com/*",
        "*://slides.google.com/*",
        "*://accounts.google.com/*",
        "*://*.google.com/*",
        "*://*.google.pl/*",
        "*://*.googleusercontent.com/*",
        "*://*.googleapis.com/*",
        "*://*.gstatic.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "icons": {
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "adblock-undetector@downupstudio.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}