Examine source code of BlockDistraction – Block Site Extension

{
  "manifest_version": 3,
  "name": "__MSG_chromename__",
  "short_name": "__MSG_shortname__",
  "description": "__MSG_description__",
  "author": "MarkAlexI",
  "homepage_url": "https://blockdistraction.com",
  "default_locale": "en",
  "version": "3.9.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "{397e704c-6038-4647-8d15-35040d68b032}",
      "strict_min_version": "113.0"
    },
    "gecko_android": {
      "id": "{397e704c-6038-4647-8d15-35040d68b032}",
      "strict_min_version": "120.0"
    }
  },
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "192": "images/icon-192.png"
  },
  "permissions": [
    "declarativeNetRequestWithHostAccess",
    "storage",
    "tabs",
    "alarms",
    "contextMenus"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "action": {
    "default_icon": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png",
      "192": "images/icon-192.png"
    },
    "default_popup": "index.html",
    "default_title": "__MSG_defaulttitle__"
  },
  "background": {
    "scripts": [
      "scripts/service_worker.js"
    ],
    "persistent": false,
    "type": "module"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "blocked.html",
        "styles/blocked.css",
        "scripts/blocked.js",
        "redirect.html",
        "styles/redirect.css",
        "scripts/redirect.js",
        "onboarding/onboarding.html",
        "onboarding/onboarding.css",
        "onboarding/onboarding.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "default-src 'self'; style-src 'self'; img-src 'self' https://* http://* data:; script-src 'self'; connect-src 'self' https://blockdistraction.com;"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  }
}