Examine source code of Disable AI Overviews

{
  "manifest_version": 3,
  "name": "Disable AI Overviews",
  "version": "1.9",
  "description": "Disables Google's AI Overviews. Click the toolbar icon to toggle the blocking on or off.",
  "permissions": [
    "declarativeNetRequest",
    "storage"
  ],
  "host_permissions": [
    "*://*.google.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "action": {
    "default_title": "Disable AI Overviews",
    "default_icon": "icon.png"
  },
  "icons": {
    "96": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "disable-ai-overviews@example.com"
    }
  }
}