Examine source code of Toggle Pin Tab

{
  "manifest_version": 2,
  "name": "Toggle Pin Tab",
  "version": "1.0",
  "description": "Toggle pin/unpin for the active tab",
  "permissions": [
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "toggle-pin": {
      "suggested_key": {
        "default": "Ctrl+Alt+P"
      },
      "description": "Toggle pin for current tab"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "pin-tab-toggle@denis.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_user_data": false,
        "collects_technical_data": false,
        "collection_purposes": []
      }
    }
  }
}