Examine source code of QuoteMe

{
  "name": "QuoteMe",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/fjl5/quoteme",
  "author": "Achim Leitner",
  "manifest_version": 3,
  "version": "2.0.2",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "quoteme@fjl.de"
    }
  },
  "icons": {
    "16": "icons/quote-16.png",
    "32": "icons/quote-32.png",
    "48": "icons/quote-48.png",
    "96": "icons/quote-96.png",
    "128": "icons/quote-128.png"
  },
  "permissions": [
    "storage",
    "scripting",
    "activeTab",
    "contextMenus"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "action": {
    "default_icon": {
      "16": "icons/quote-16.png",
      "32": "icons/quote-32.png"
    },
    "default_title": "QuoteMe [Ctrl]+[E]"
  },
  "commands": {
    "quote_block": {
      "suggested_key": {
        "default": "Ctrl+E"
      },
      "description": "Quote the selected text block"
    },
    "quote_inline": {
      "suggested_key": {
        "default": "Alt+M"
      },
      "description": "Quote the selected text string"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}