Examine source code of WebOutLoud - Text to Speech Web Reader

{
  "manifest_version": 2,
  "default_locale": "en",
  "name": "WebOutLoud - Text to Speech Web Reader",
  "description": "Listen to the web using text to speech. Perfect for dyslexia, low vision, students, researchers, kids, learning to read.",
  "version": "2026.2.4.1",
  "icons": {
    "48": "images/icon-48.png",
    "96": "images/icon-96.png",
    "128": "images/icon-128.png",
    "256": "images/icon-256.png",
    "512": "images/icon-512.png"
  },
  "background": {
    "scripts": [
      "shared.js",
      "aws-sdk-2.1068.0.min.js",
      "common.js",
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "js": [
        "bootstrap.js"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "common.js",
        "shared.js",
        "jquery-4.0.0.min.js",
        "aws-sdk-2.1068.0.min.js",
        "reader.js",
        "WOLAudio.js",
        "content.js",
        "components.js",
        "synth.js",
        "PollySynth.js",
        "widgets.js",
        "ReaderMode.js",
        "PlayerUI.js",
        "MoreMenu.js",
        "VoicePicker.js",
        "UserMessage.js",
        "SpeedPitch.js",
        "Settings.js",
        "Account.js",
        "MarketingMessage.js",
        "readermode/readermode_controller.js",
        "summarymode/summarymode_controller.js"
      ],
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {},
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "contextMenus",
    "https://weboutloud.io/",
    "https://api.bretlester.com/",
    "https://polly.us-east-1.amazonaws.com/"
  ],
  "web_accessible_resources": [
    "images/*",
    "Nunito-VariableFont_wght.ttf",
    "Petrona-Italic-VariableFont_wght.ttf",
    "Petrona-VariableFont_wght.ttf",
    "bootstrap-page.js"
  ],
  "commands": {
    "next": {
      "suggested_key": {
        "default": "Alt+Shift+Period"
      },
      "description": "Next"
    },
    "previous": {
      "suggested_key": {
        "default": "Alt+Shift+Comma"
      },
      "description": "Previous"
    },
    "focus-player": {
      "suggested_key": {
        "default": "Alt+K"
      },
      "description": "Activate and Focus WebOutLoud"
    },
    "focus-cursor": {
      "suggested_key": {
        "default": "Alt+J"
      },
      "description": "Focus Cursor"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "authenticationInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      },
      "id": "{dc5d8852-f600-4ef7-9b41-da1738b1a321}"
    }
  }
}