Examine source code of Audioma

{
  "manifest_version": 3,
  "name": "Audioma",
  "version": "0.3.1",
  "description": "Primed Listening for YouTube and Netflix in Chrome and Firefox.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d6962e0c-a6eb-41b6-8209-19811d2777b9}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/audioma-16.png",
    "32": "icons/audioma-32.png",
    "48": "icons/audioma-48.png",
    "128": "icons/audioma-128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/audioma-16.png",
      "32": "icons/audioma-32.png",
      "48": "icons/audioma-48.png"
    },
    "default_title": "Subtitle helper"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.netflix.com/*",
        "*://www.youtube.com/*"
      ],
      "js": [
        "content.js",
        "overlay.js"
      ],
      "css": [
        "overlay.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/audioma-16.png",
        "icons/audioma-32.png",
        "icons/audioma-48.png",
        "icons/audioma-128.png"
      ],
      "matches": [
        "*://www.netflix.com/*",
        "*://www.youtube.com/*"
      ]
    }
  ]
}