Examine source code of Ad Cleanse & Search

{
  "manifest_version": 3,
  "version": "1.0.8",
  "name": "__MSG_extName__",
  "short_name": "__MSG_extShortName__",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/config.js",
      "js/background-core.js",
      "js/background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "__MSG_extName__",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "64": "icons/icon64.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "search",
    "cookies",
    "alarms",
    "webRequest",
    "declarativeNetRequest",
    "scripting"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "adblock_rules",
        "enabled": true,
        "path": "adblock/rules.json"
      }
    ]
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://www.youtube-nocookie.com/*"
      ],
      "js": [
        "adblock/youtube-adblock.js"
      ],
      "run_at": "document_start",
      "world": "MAIN",
      "all_frames": false
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "adblock/cosmetic.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/contentscript.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "__MSG_extName__",
      "keyword": "adcleanse",
      "search_url": "https://search.ad-cleanse.com/search?q={searchTerms}",
      "favicon_url": "favicon.ico",
      "is_default": true
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{81965abd-e15f-4634-8e39-3ffe6ae837e4}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}