Examine source code of WhatsApp Blur

{
  "content_scripts": [
    {
      "matches": [
        "https://web.whatsapp.com/*"
      ],
      "js": [
        "scripts/contentScript.js"
      ]
    },
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "scripts/privacy.js"
      ]
    }
  ],
  "commands": {
    "toggle": {
      "suggested_key": {
        "default": "Alt+X"
      },
      "description": "Toggle On/Off"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "121.0",
      "id": "{a5691bc2-4de8-4929-b5ef-8f316e1cefc9}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "92.0"
    }
  },
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://web.whatsapp.com/*"
      ],
      "resources": [
        "images/statusOn.png",
        "images/statusOff.png",
        "css/messages.css",
        "css/messagesPreview.css",
        "css/mediaPreview.css",
        "css/mediaGallery.css",
        "css/textInput.css",
        "css/profilePic.css",
        "css/name.css",
        "css/noDelay.css",
        "css/unblurActive.css"
      ]
    }
  ],
  "manifest_version": 3,
  "host_permissions": [
    "*://*/*"
  ],
  "name": "__MSG_extensionName__",
  "version": "1.4.6",
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "images/icon16.png",
      "24": "images/icon24.png",
      "32": "images/icon32.png"
    }
  },
  "permissions": [
    "declarativeNetRequest",
    "storage"
  ]
}