Examine source code of ZFensi Social Toolkit

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "version": "1.0.0",
  "description": "__MSG_extDescription__",
  "default_locale": "zh_CN",
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "ZFensi Social Toolkit",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background/service_worker.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "zfensi-social-toolkit@zfensi.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "https://www.facebook.com/*",
    "https://www.messenger.com/*",
    "https://*.instagram.com/*",
    "https://twitter.com/*",
    "https://x.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.facebook.com/*",
        "https://www.messenger.com/*",
        "https://*.instagram.com/*",
        "https://twitter.com/*",
        "https://x.com/*"
      ],
      "js": [
        "lib/storage.js",
        "lib/formatter.js",
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "toggle-panel": {
      "suggested_key": {
        "default": "Ctrl+Shift+K",
        "mac": "Command+Shift+K"
      },
      "description": "__MSG_cmdTogglePanel__"
    },
    "format-active-input": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      },
      "description": "__MSG_cmdFormatActive__"
    }
  },
  "options_page": "options/options.html"
}