Examine source code of Lazy Post Detector

{
  "manifest_version": 3,
  "name": "Lazy Post Detector",
  "version": "1.0",
  "description": "Highlights posts that contain em dashes or en dashes—encouraging a little extra effort.",
  "content_scripts": [
    {
      "matches": [
        "https://www.linkedin.com/*"
      ],
      "js": [
        "src/content.js"
      ],
      "css": [
        "src/style.css"
      ]
    }
  ],
  "action": {
    "default_popup": "src/popup.html",
    "default_icon": {
      "16": "icons/icon.png",
      "32": "icons/icon.png",
      "48": "icons/icon.png",
      "128": "icons/icon.png"
    }
  },
  "icons": {
    "16": "icons/icon.png",
    "32": "icons/icon.png",
    "48": "icons/icon.png",
    "128": "icons/icon.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "lazy-post-detector@example.com"
    }
  }
}