Examine source code of Kagi Search Switcher

{
  "manifest_version": 2,
  "name": "Kagi Search Switcher",
  "version": "1.1",
  "description": "Automatically switches to a fallback search engine when you reach your Kagi free tier monthly search limit",
  "browser_specific_settings": {
    "gecko": {
      "id": "kagi-switcher@github.com"
    }
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon_48x48.png",
      "96": "icon_96x96.png"
    }
  },
  "icons": {
    "48": "icon_48x48.png",
    "96": "icon_96x96.png"
  },
  "permissions": [
    "storage",
    "*://kagi.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://kagi.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}