Page Ruler Chrome

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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Page Ruler",
  "description": "Page Ruler: Drag guidelines and inspect element properties for perfect UI practice in browser.",
  "version": "4.6",
  "permissions": [
    "storage",
    "scripting",
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "index.html",
    "default_icon": "assets/default_icon.png"
  },
  "icons": {
    "16": "assets/icon-16.png",
    "32": "assets/icon-32.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "background": {
    "service_worker": "src/scripts/service-worker.js"
  },
  "content_scripts": [
    {
      "js": [
        "src/scripts/app.js"
      ],
      "css": [
        "src/styles/inject.css"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ]
    }
  ]
}

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