Examine source code of Website Mood Lighting

{
  "manifest_version": 3,
  "name": "Website Mood Lighting",
  "version": "1.0",
  "description": "Adjust website colors to reduce eye strain and enhance reading comfort.",
  "icons": {
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d9a3c7f1-2d8b-48e4-9d5c-3c6a04d67c2e}"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}