CheckWithMouseOver

Invert the check with Alt key & mouse over for check box or radio button.

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "CheckWithMouseOver",
  "version": "1.2.2",
  "description": "Invert the check with Alt key & mouse over for check box or radio button.",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "js/index.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ]
}