Examine source code of Tab Shortcuts

{
  "manifest_version": 2,
  "name": "Tab Shortcuts",
  "version": "1.5",
  "description": "Duplicate or Pin/Unpin the current tab via keyboard shortcuts or toolbar button. Shortcuts configurable via options.",
  "permissions": [
    "tabs",
    "storage",
    "contextMenus"
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "background": {
    "scripts": [
      "browser-polyfill.min.js",
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png"
    },
    "default_title": "Duplicate Current Tab (Right-click for Options)",
    "browser_style": true
  },
  "commands": {
    "duplicate-current-tab": {
      "suggested_key": {
        "default": "Alt+Shift+D"
      },
      "description": "Duplicate Current Tab"
    },
    "pin-current-tab": {
      "suggested_key": {
        "default": "Alt+Shift+P"
      },
      "description": "Pin/Unpin Current Tab"
    }
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5ccd67b5-6b87-4c61-8f41-084814bc7215}"
    }
  }
}