Google recently released official Gmail Add-ons on G Suite Marketplace.
I've been working on a Gmail add-on for Invoice.to and drafted this Sketch library to make things easier for other designers designing Gmail Add-ons.
- Download Gmail Add-on Design Kit
- Open Sketch app
- Add Library by selecting "Gmail Addon Design.sketch" using File -> Add Library menu
You can use the library as you'd use any symbol, i.e via Insert -> Gmail Addon Design or Sketch Runner
Using examples, typography and iconography artboards, you can easily update fonts and add new icons.
If you have any questions or feedback, reach out @ugurkaner