Examine source code of Local Manga Translator

{
  "manifest_version": 3,
  "name": "Manga Translator",
  "version": "2.8",
  "description": "Translates manga panels using a local AI server.",
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "http://127.0.0.1:5000/*",
    "http://127.0.0.1/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "toggle-selection": {
      "suggested_key": {
        "default": "Alt+Q",
        "mac": "Alt+Q"
      },
      "description": "Capture Manga Panel"
    }
  },
  "action": {
    "default_title": "Translate Manga",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "manga-translator@camekans31.com",
      "strict_min_version": "109.0"
    }
  }
}