Examine source code of Highlight Saver

{
  "manifest_version": 3,
  "name": "Highlight Saver",
  "version": "1.0.0",
  "description": "Save highlighted text from webpages, synced across your devices.",
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "scripting"
  ],
  "background": {
    "service_worker": "src/background/background.js",
    "scripts": [
      "src/utils/storage.js",
      "src/background/background.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "highlight-saver@yourdomain.com",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "src/content/content.css"
      ],
      "js": [
        "src/utils/storage.js",
        "src/utils/ui.js",
        "src/content/content.js"
      ]
    }
  ]
}