Examine source code of Synchronize Tab Scrolling

{
  "manifest_version": 3,
  "name": "Synchronize Tab Scrolling",
  "version": "2.10.0",
  "description": "Scroll once, sync everywhere. Compare documents, code, or translations side by side with one-click sync.",
  "default_locale": "en",
  "action": {
    "default_icon": {
      "16": "icons/logo-16.png",
      "32": "icons/logo-32.png",
      "64": "icons/logo-64.png"
    },
    "default_popup": "./dist/popup/index.html"
  },
  "background": {
    "scripts": [
      "dist/background/index.mjs"
    ],
    "type": "module"
  },
  "icons": {
    "16": "icons/logo-16.png",
    "48": "icons/logo-48.png",
    "128": "icons/logo-128.png",
    "512": "icons/logo-512.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/contentScripts/index.global.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "dist/contentScripts/synchronize-tab-scrolling.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@synchronize-tab-scrolling.org",
      "strict_min_version": "112.0"
    }
  }
}