Examine source code of SEO SkyView

{
  "manifest_version": 3,
  "name": "SEO SkyView",
  "version": "3.1",
  "description": "Get a quick SEO overview of any webpage with just one click.",
  "browser_specific_settings": {
    "gecko": {
      "id": "seo-skyview@extension.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "activeTab"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/*"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}