This looks like an an evolution of the action buttons Gmail has supported for years: https://gmail.googleblog.com/2013/05/take-action-right-from-inbox.html http

This looks like an an evolution of the action buttons Gmail has supported for years: https://gmail.googleblog.com/2013/05/take-action-right-from-inbox.html https://gmail.googleblog.com/2013/05/take-action-right-from-...