Examine source code of VoiceIME Speech Input

{
  "name": "VoiceIME",
  "description": "Speech input everywhere!",
  "version": "3.1",
  "manifest_version": 3,
  "icons": {
    "128": "icon.png"
  },
  "action": {
    "default_title": "VoiceIME",
    "default_popup": "/popup/popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "/content/recordAndTranscribe.js",
        "/content/appendButton.js"
      ],
      "css": [
        "/content/content.css"
      ],
      "run_at": "document_idle",
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "/background/background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icon.png",
        "rec.mp3",
        "/utils/recorder.js",
        "/libs/vad-audio-worklet/vad-audio-worklet.js",
        "/libs/vad-audio-worklet/fft.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "VoiceIME@FoxRefire"
    }
  },
  "commands": {
    "open-popup": {
      "suggested_key": {
        "default": "Alt+Z"
      },
      "description": "Open VoiceIME popup"
    }
  }
}