Examine source code of Quick Meme Generator

{
  "manifest_version": 2,
  "name": "Quick Meme Generator",
  "version": "1.0",
  "description": "Create memes instantly! Right-click any image on the web, add funny text, and save or share your meme. View and manage your meme history in a vibrant settings page.",
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "<all_urls>",
    "downloads"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1a42d094-ef45-4608-a326-e9b206e67934}"
    }
  }
}