Examine source code of Dictation Pro

{
  "manifest_version": 2,
  "name": "Dictation Pro",
  "version": "1.2.0",
  "description": "Enhanced text input detection with Shadow DOM and ARIA support",
  "icons": {
    "16": "Icons/DPLogoScale16.png",
    "32": "Icons/DPLogoScale32.png",
    "48": "Icons/DPLogoScale48.png",
    "64": "Icons/DPLogoScale64.png",
    "128": "Icons/DPLogoScale128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "inputtextdetector@example.org"
    }
  },
  "permissions": [
    "nativeMessaging"
  ],
  "background": {
    "scripts": [
      "Background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "Content.js"
      ],
      "run_at": "document_end"
    }
  ]
}