Examine source code of Voxtyper: Speech to Text & Dictation

{
  "manifest_version": 3,
  "name": "Voxtyper: Speech to Text & Dictation",
  "version": "2.1.0",
  "description": "Accurate speech to text dictation with automatic punctuation and capitalization. Voice type into any text field with Ctrl+Space.",
  "browser_specific_settings": {
    "gecko": {
      "id": "voxtyper@voxtyper.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "personallyIdentifyingInfo",
          "personalCommunications",
          "locationInfo"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "clipboardWrite"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "host_permissions": [
    "https://api.voxtyper.app/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://checkout.stripe.com/*",
        "*://js.stripe.com/*",
        "*://billing.stripe.com/*"
      ],
      "js": [
        "content/content.js"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "exclude_matches": [
        "*://checkout.stripe.com/*",
        "*://js.stripe.com/*",
        "*://billing.stripe.com/*"
      ],
      "js": [
        "recorder-frame-injector.js"
      ],
      "run_at": "document_idle",
      "match_about_blank": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "recorder-frame.html",
        "options/images/firefox-mic-prompt.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_title": "Voxtyper",
    "default_icon": {
      "16": "icons/voxtyper-16.png",
      "32": "icons/voxtyper-32.png",
      "48": "icons/voxtyper-48.png",
      "128": "icons/voxtyper-128.png"
    }
  },
  "icons": {
    "128": "icons/voxtyper-128.png",
    "256": "icons/voxtyper-256.png",
    "512": "icons/voxtyper-512.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  }
}