Examine source code of S_Guard Ad Blocker

{
  "manifest_version": 2,
  "name": "S_Guard Ad Blocker",
  "short_name": "S_Guard",
  "version": "1.0.0",
  "description": "Lightweight, privacy-respecting ad and tracker blocker. Blocks ads locally, no data collection, no remote code.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "storage",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; style-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "s_guard@sithu-afk.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}