Examine source code of Pin Notes

{
  "manifest_version": 2,
  "name": "Pin",
  "version": "1.0.2",
  "description": "Write notes on your favorite browser.",
  "permissions": [
    "tabs",
    "<all_urls>",
    "activeTab",
    "storage",
    "downloads"
  ],
  "icons": {
    "48": "./icons/icon.svg",
    "96": "./icons/icon.svg"
  },
  "browser_action": {
    "default_popup": "popup/index.html"
  },
  "sidebar_action": {
    "default_panel": "sidebar/index.html",
    "default_icon": "./icons/icon.svg"
  },
  "storage": {
    "managed_schema": "schema.json"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{51ac6bca-9b83-4877-ab53-4f924f4133c5}"
    }
  }
}