Examine source code of iPad Style Tabs Overview

{
  "author": "🐶",
  "background": {
    "page": "main.html"
  },
  "browser_action": {
    "default_area": "navbar",
    "default_icon": "assets/app.svg"
  },
  "commands": {
    "show all tabs": {
      "description": "__MSG_commandDescription__",
      "suggested_key": {
        "default": "Ctrl+Shift+Period",
        "mac": "Command+Shift+Period"
      }
    }
  },
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "16": "assets/app.svg",
    "48": "assets/app.svg",
    "128": "assets/app.svg"
  },
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "permissions": [
    "<all_urls>",
    "tabs"
  ],
  "version": "0.0.0"
}