Examine source code of Kabyle Input Helper

{
  "manifest_version": 2,
  "name": "Kabyle Input Helper",
  "author": "ButterflyOfFire",
  "version": "1.1",
  "description": "Helps type Kabyle characters using special sequences",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "79.0",
      "id": "{63288483-7dae-42b4-9e97-b50a0eaee1ff}"
    }
  }
}